-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathJS-Multidimensional-Arrays.html
484 lines (415 loc) · 30 KB
/
JS-Multidimensional-Arrays.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>JS Multidimensional Arrays</title>
<style>
* {
font-family: Arial, Helvetica, sans-serif;
}
table {
font-family: arial, sans-serif;
border-collapse: collapse;
width: 50%;
}
td,
th {
border: 1px solid #dddddd;
text-align: left;
padding: 8px;
}
tr:nth-child(even) {
background-color: #dddddd;
}
code[class*="language-"],
pre[class*="language-"] {
color: black;
background: none;
background-color: rgba(0, 0, 0, 0);
font-family: Consolas, Monaco, "Andale Mono", "Ubuntu Mono", monospace;
font-size: 1em;
text-align: left;
white-space: pre;
word-spacing: normal;
word-break: normal;
word-wrap: normal;
line-height: 1.5;
-moz-tab-size: 4;
-o-tab-size: 4;
tab-size: 4;
-webkit-hyphens: none;
-moz-hyphens: none;
-ms-hyphens: none;
hyphens: none;
}
:not(pre) > code[class*="language-"]::after,
pre[class*="language-"]::after {
right: 0.75em;
left: auto;
-webkit-transform: rotate(2deg);
-moz-transform: rotate(2deg);
-ms-transform: rotate(2deg);
-o-transform: rotate(2deg);
transform: rotate(2deg);
}
pre[class*="language-"]::before,
pre[class*="language-"]::after {
content: "";
z-index: -2;
display: block;
position: absolute;
bottom: 0.75em;
left: 0.18em;
width: 40%;
height: 20%;
max-height: 13em;
-webkit-transform: rotate(-2deg);
-moz-transform: rotate(-2deg);
-ms-transform: rotate(-2deg);
-o-transform: rotate(-2deg);
transform: rotate(-2deg);
}
:not(pre) > code[class*="language-"],
pre[class*="language-"] {
background-color: #fdfdfd;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
margin-bottom: 1em;
}
pre[class*="language-"] {
position: relative;
margin: 0.5em 0;
margin-bottom: 0.5em;
overflow: visible;
padding: 0;
}
code[class*="language-"],
pre[class*="language-"] {
color: black;
background: none;
background-color: rgba(0, 0, 0, 0);
font-family: Consolas, Monaco, "Andale Mono", "Ubuntu Mono", monospace;
font-size: 1em;
text-align: left;
white-space: pre;
word-spacing: normal;
word-break: normal;
word-wrap: normal;
line-height: 1.5;
-moz-tab-size: 4;
-o-tab-size: 4;
tab-size: 4;
-webkit-hyphens: none;
-moz-hyphens: none;
-ms-hyphens: none;
hyphens: none;
}
pre {
display: block;
font-size: 87.5%;
color: #212529;
}
pre {
margin-top: 0;
margin-bottom: 1rem;
overflow: auto;
-ms-overflow-style: scrollbar;
}
code,
kbd,
pre,
samp {
font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
"Courier New", monospace;
font-size: 1em;
}
pre[class*="language-"] > code {
position: relative;
border-left: 10px solid #358ccb;
box-shadow: -1px 0px 0px 0px #358ccb, 0px 0px 0px 1px #dfdfdf;
background-color: #fdfdfd;
background-image: linear-gradient(
transparent 50%,
rgba(69, 142, 209, 0.04) 50%
);
background-size: 3em 3em;
background-origin: content-box;
background-attachment: local;
}
code[class*="language"] {
max-height: inherit;
height: inherit;
padding: 0 1em;
display: block;
overflow: auto;
}
code[class*="language-"],
pre[class*="language-"] {
color: black;
background: none;
background-color: rgba(0, 0, 0, 0);
background-attachment: scroll;
background-image: none;
background-size: auto;
background-origin: padding-box;
font-family: Consolas, Monaco, "Andale Mono", "Ubuntu Mono", monospace;
font-size: 1em;
text-align: left;
white-space: pre;
word-spacing: normal;
word-break: normal;
word-wrap: normal;
line-height: 1.5;
-moz-tab-size: 4;
-o-tab-size: 4;
tab-size: 4;
-webkit-hyphens: none;
-moz-hyphens: none;
-ms-hyphens: none;
hyphens: none;
}
pre code {
font-size: inherit;
color: inherit;
word-break: normal;
}
code {
font-size: 87.5%;
color: #e83e8c;
word-wrap: break-word;
}
code,
kbd,
pre,
samp {
font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
"Courier New", monospace;
font-size: 1em;
}
*,
::after,
::before {
box-sizing: border-box;
}
</style>
</head>
<body>
<h1>JS Multidimensional Arrays</h1>
<p>
Multidimensional arrays are not directly provided in JavaScript. If we
want to use anything which acts as a multidimensional array then we need
to create a multidimensional array by using another one-dimensional array.
So multidimensional arrays in JavaScript is known as arrays inside another
array. We need to put some arrays inside an array, then the total thing is
working like a multidimensional array. The array, in which the other
arrays are going to insert, that array is use as the multidimensional
array in our code. To define a multidimensional array its exactly the same
as defining a normal one-dimensional array.
</p>
<h1>One-Dimensional array:</h1>
<p>var arr = []; // Empty 1D array</p>
<p>var arr1 = ["A", "B", "C", "D"] // 1D array contains some alphabets</p>
<p>var arr1 = [1, 2, 3, 4, 5] // 1D array contains some digits</p>
<hr />
<h1>Multidimensional-Dimensional array:</h1>
<h1>Method 1:</h1>
<pre
class="language-javascript"
tabindex="0"
><code class="language-javascript">1st<span class="token punctuation">,</span> need to define some 1D array
<span class="token keyword">var</span> arr1 <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token string">"ABC"</span><span class="token punctuation">,</span> <span class="token number">24</span><span class="token punctuation">,</span> <span class="token number">18000</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
<span class="token keyword">var</span> arr2 <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token string">"EFG"</span><span class="token punctuation">,</span> <span class="token number">30</span><span class="token punctuation">,</span> <span class="token number">30000</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
<span class="token keyword">var</span> arr3 <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token string">"IJK"</span><span class="token punctuation">,</span> <span class="token number">28</span><span class="token punctuation">,</span> <span class="token number">41000</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
<span class="token keyword">var</span> arr4 <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token string">"EFG"</span><span class="token punctuation">,</span> <span class="token number">31</span><span class="token punctuation">,</span> <span class="token number">28000</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
<span class="token keyword">var</span> arr5 <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token string">"EFG"</span><span class="token punctuation">,</span> <span class="token number">29</span><span class="token punctuation">,</span> <span class="token number">35000</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
<span class="token comment">// "salary" defines like a 1D array but it already contains some 1D array</span>
<span class="token keyword">var</span> salary <span class="token operator">=</span> <span class="token punctuation">[</span>arr1<span class="token punctuation">,</span> arr2<span class="token punctuation">,</span> arr3<span class="token punctuation">,</span> arr4<span class="token punctuation">,</span> arr5<span class="token punctuation">]</span><span class="token punctuation">;</span> </code></pre>
<p>
1st, need to define some 1D array var arr1 = ["ABC", 24, 18000]; var arr2
= ["EFG", 30, 30000]; var arr3 = ["IJK", 28, 41000]; var arr4 = ["EFG",
31, 28000]; var arr5 = ["EFG", 29, 35000]; // "salary" defines like a 1D
array but it already contains some 1D array var salary = [arr1, arr2,
arr3, arr4, arr5];
</p>
<p>
Here arr1, arr2, …arr5 are some 1D arrays that are inside salary array.
</p>
<h1>Method 2:</h1>
<pre
class="language-javascript"
tabindex="0"
><code class="language-javascript"><span class="token keyword">var</span> salary <span class="token operator">=</span> <span class="token punctuation">[</span>
<span class="token punctuation">[</span><span class="token string">"ABC"</span><span class="token punctuation">,</span> <span class="token number">24</span><span class="token punctuation">,</span> <span class="token number">18000</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
<span class="token punctuation">[</span><span class="token string">"EFG"</span><span class="token punctuation">,</span> <span class="token number">30</span><span class="token punctuation">,</span> <span class="token number">30000</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
<span class="token punctuation">[</span><span class="token string">"IJK"</span><span class="token punctuation">,</span> <span class="token number">28</span><span class="token punctuation">,</span> <span class="token number">41000</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
<span class="token punctuation">[</span><span class="token string">"EFG"</span><span class="token punctuation">,</span> <span class="token number">31</span><span class="token punctuation">,</span> <span class="token number">28000</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
<span class="token punctuation">]</span><span class="token punctuation">;</span>
</code></pre>
<p>
Here, salary array works like a multidimensional array. This notations are
known as array literals.
</p>
<h1>Accessing the element of salary array:</h1>
<ul>
<li>To access the array element we need a simple index-based notation</li>
</ul>
<p>// This notation access the salary of "ABC" person which is 18000,</p>
<p>// [0] selects 1st row, and [2] selects the 3rd element</p>
<p>// of that 1st row which is 18000</p>
<p>salary[0][2];</p>
<br /><br />
<p>// Similarly,</p>
<p>salary[3][2]; // Selects 28000</p>
<p>**This notation is used for both Method 1 and Method 2.</p>
<ul>
<li>For many iteration, we need to use loop to access the elements,</li>
</ul>
<pre
class="language-javascript"
tabindex="0"
><code class="language-javascript"><span class="token comment">// This loop is for outer array</span>
<span class="token keyword">for</span> <span class="token punctuation">(</span><span class="token keyword">var</span> i <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">,</span> l1 <span class="token operator">=</span> salary<span class="token punctuation">.</span>length<span class="token punctuation">;</span> i <span class="token operator"><</span> l1<span class="token punctuation">;</span> i<span class="token operator">++</span><span class="token punctuation">)</span>
<span class="token punctuation">{</span>
<span class="token comment">// This loop is for inner-arrays</span>
<span class="token keyword">for</span> <span class="token punctuation">(</span><span class="token keyword">var</span> j <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">,</span> l2 <span class="token operator">=</span> salary<span class="token punctuation">[</span>i<span class="token punctuation">]</span><span class="token punctuation">.</span>length<span class="token punctuation">;</span> j <span class="token operator"><</span> l2<span class="token punctuation">;</span> j<span class="token operator">++</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token comment">// Accessing each elements of inner-array</span>
documents<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span> salary<span class="token punctuation">[</span>i<span class="token punctuation">]</span><span class="token punctuation">[</span>j<span class="token punctuation">]</span> <span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre>
<hr />
<h1>Adding elements in Multidimensional Array:</h1>
<p>
Adding elements in multi-dimensional arrays can be achieved in two ways in
inner array or outer array. The inner array can be done in two different
ways.
</p>
<h1>Adding elements to inner array:</h1>
<p>
We can use simple square bracket notation to add elements in
multidimensional array.
</p>
<p>salary[3][3] = "Pakistan";</p>
<br /><br /><br />
<p>// It adds "Pakistan" at the 4th index of 4th sub-array,</p>
<p>// If we print the entire 4th sub-array, document.write(salary[3]);</p>
<p>// the output will be : ["EFG", 31, 28000, "Pakistan"]</p>
<p>// indexing starts from 0</p>
<ul>
<li>We can use push() method to add elements in the array.</li>
</ul>
<p>salary[3].push("Pakistan", "Karachi");</p>
<p>// It add "Pakistan" at the 4th index and "karachi" at</p>
<p>// 5th index of 4th sub-array</p>
<p>// If we print the entire 4th sub-array,</p>
<p>// document.write(salary[3]);</p>
<p>// The output will be : ["EFG", 31, 28000, "Pakistan", "Karachi"]</p>
<p>// Indexing starts from 0</p>
<ul>
<li>Adding elements to outer array:</li>
</ul>
<p>It is much similar to previous methods.</p>
<p>salary.push(["MNO", 29, 33300]);</p>
<p>// This row added after the last row in the "salary" array</p>
<hr />
<h1>Removing elements in Multidimensional Array:</h1>
<p>
We can use pop() methods to remove elements from inner-arrays, and also
use pop() method for removing a entire inner array.
</p>
<p>// Remove last element from 4th sub-array</p>
<p>// That is 28000 indexing starts from 0</p>
<p>salary[3].pop();</p>
<p>// Removes last sub-array</p>
<p>// That is "["EFG", 31, 28000]"</p>
<p>salary.pop();</p>
<pre
class="language-markup"
tabindex="0"
><code class="language-markup"><span class="token doctype"><span class="token punctuation"><!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>JavaScript<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>script</span><span class="token punctuation">></span></span><span class="token script"><span class="token language-javascript">
<span class="token keyword">var</span> ary <span class="token operator">=</span> <span class="token punctuation">[</span>
<span class="token punctuation">[</span><span class="token string">"Harry"</span><span class="token punctuation">,</span><span class="token number">18</span><span class="token punctuation">,</span><span class="token string">"Male"</span><span class="token punctuation">,</span><span class="token string">"B.Com"</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
<span class="token punctuation">[</span><span class="token string">"Sunny"</span><span class="token punctuation">,</span><span class="token number">19</span><span class="token punctuation">,</span><span class="token string">"Male"</span><span class="token punctuation">,</span><span class="token string">"BCA"</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
<span class="token punctuation">[</span><span class="token string">"Sarah"</span><span class="token punctuation">,</span><span class="token number">18</span><span class="token punctuation">,</span><span class="token string">"Male"</span><span class="token punctuation">,</span><span class="token string">"BCA"</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
<span class="token punctuation">[</span><span class="token string">"Tom"</span><span class="token punctuation">,</span><span class="token number">17</span><span class="token punctuation">,</span><span class="token string">"Male"</span><span class="token punctuation">,</span><span class="token string">"B.A."</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
<span class="token punctuation">[</span><span class="token string">"Mac"</span><span class="token punctuation">,</span><span class="token number">17</span><span class="token punctuation">,</span><span class="token string">"Male"</span><span class="token punctuation">,</span><span class="token string">"B.A."</span><span class="token punctuation">]</span>
<span class="token punctuation">]</span><span class="token punctuation">;</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token string">"<table border='1px' cellspacing='0'>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">for</span><span class="token punctuation">(</span><span class="token keyword">var</span> a <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">;</span> a <span class="token operator"><</span> <span class="token number">5</span><span class="token punctuation">;</span> a<span class="token operator">++</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token string">"<tr>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">for</span><span class="token punctuation">(</span><span class="token keyword">var</span> b<span class="token operator">=</span><span class="token number">0</span><span class="token punctuation">;</span> b <span class="token operator"><</span> <span class="token number">4</span><span class="token punctuation">;</span> b<span class="token operator">++</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token string">"<td>"</span> <span class="token operator">+</span> ary<span class="token punctuation">[</span>a<span class="token punctuation">]</span><span class="token punctuation">[</span>b<span class="token punctuation">]</span> <span class="token operator">+</span> <span class="token string">"</td>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token string">"</tr>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token string">"</table>"</span><span class="token punctuation">)</span>
</span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>script</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span></code></pre>
<hr />
<h1>With Array Length</h1>
<pre
class="language-markup"
tabindex="0"
><code class="language-markup"><span class="token doctype"><span class="token punctuation"><!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>JavaScript<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>script</span><span class="token punctuation">></span></span><span class="token script"><span class="token language-javascript">
<span class="token keyword">var</span> ary <span class="token operator">=</span> <span class="token punctuation">[</span>
<span class="token punctuation">[</span><span class="token string">"Harry"</span><span class="token punctuation">,</span><span class="token number">18</span><span class="token punctuation">,</span><span class="token string">"Male"</span><span class="token punctuation">,</span><span class="token string">"B.Com"</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
<span class="token punctuation">[</span><span class="token string">"Sunny"</span><span class="token punctuation">,</span><span class="token number">19</span><span class="token punctuation">,</span><span class="token string">"Male"</span><span class="token punctuation">,</span><span class="token string">"BCA"</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
<span class="token punctuation">[</span><span class="token string">"Sarah"</span><span class="token punctuation">,</span><span class="token number">18</span><span class="token punctuation">,</span><span class="token string">"Male"</span><span class="token punctuation">,</span><span class="token string">"BCA"</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
<span class="token punctuation">[</span><span class="token string">"Tom"</span><span class="token punctuation">,</span><span class="token number">17</span><span class="token punctuation">,</span><span class="token string">"Male"</span><span class="token punctuation">,</span><span class="token string">"B.A."</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
<span class="token punctuation">[</span><span class="token string">"Mac"</span><span class="token punctuation">,</span><span class="token number">17</span><span class="token punctuation">,</span><span class="token string">"Male"</span><span class="token punctuation">,</span><span class="token string">"B.A."</span><span class="token punctuation">]</span>
<span class="token punctuation">]</span><span class="token punctuation">;</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>ary<span class="token punctuation">.</span>length<span class="token punctuation">)</span><span class="token punctuation">;</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token string">"<table border='1px' cellspacing='0'>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">for</span><span class="token punctuation">(</span><span class="token keyword">var</span> a <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">;</span> a <span class="token operator"><</span> ary<span class="token punctuation">.</span>length<span class="token punctuation">;</span> a<span class="token operator">++</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token string">"<tr>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">for</span><span class="token punctuation">(</span><span class="token keyword">var</span> b<span class="token operator">=</span><span class="token number">0</span><span class="token punctuation">;</span> b <span class="token operator"><</span> ary<span class="token punctuation">[</span>a<span class="token punctuation">]</span><span class="token punctuation">.</span>length<span class="token punctuation">;</span> b<span class="token operator">++</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token string">"<td>"</span> <span class="token operator">+</span> ary<span class="token punctuation">[</span>a<span class="token punctuation">]</span><span class="token punctuation">[</span>b<span class="token punctuation">]</span> <span class="token operator">+</span> <span class="token string">"</td>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token string">"</tr>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token string">"</table>"</span><span class="token punctuation">)</span>
</span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>script</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span></code></pre>
</body>
<script>
let data = [
["Hamza Khan Lodhi", "14", "Male", "BCOM"],
["Rashida Khan Lodhi", "14", "Female", "BCOM"],
["Umar Khan Lodhi", "14", "Male", "BCOM"],
["Rehman Khan Lodhi", "14", "Male", "BCOM"],
["Zubair Khan Lodhi", "14", "Male", "BCOM"],
["Raheem Khan Lodhi", "14", "Male", "BCOM"],
["Irfan Khan Lodhi", "14", "Male", "BCOM"],
["Ali Khan Lodhi", "14", "Male", "BCOM"],
["Hafsa Khan Lodhi", "14", "Female", "BCOM"],
];
let c = prompt("");
for (let a = 0; a < data.length; a++) {
for (let b = 0; b < 4; b++) {
if (data[a][b] == c) {
document.write(
data[a][0] + " " + data[a][1] + " " + data[a][2] + " " + data[a][3]
);
alert("Data Founded");
}
}
document.write("<br>");
}
</script>
</html>