JS.exercise/index2.html at main · sanacoder26/JS.exercise · GitHub

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
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>javascript exercise</title>
</head>
<body>
    <script>

/*Chapter 12 to 13

Q1

let char = 'A';

if (char >= '0' && char <= '9') {
    console.log("The character is a number.");
} else if (char >= 'A' && char <= 'Z') {
    console.log("The character is an uppercase letter.");
} else if (char >= 'a' && char <= 'z') {
    console.log("The character is a lowercase letter.");
} else {
    console.log("The character is neither a number nor a letter.");
}

Q2


let a = 10;
let b = 25;
let c = 15;

if (a >= b && a >= c) {
    console.log(a + " is the largest number.");
} else if (b >= a && b >= c) {
    console.log(b + " is the largest number.");
} else {
    console.log(c + " is the largest number.");
}


Q3

let num = -10;

if (num > 0) {
    console.log(num + " is positive.");
} else if (num < 0) {
    console.log(num + " is negative.");
} else {
    console.log("The number is zero.");
}


Q4

let chara = 'E';

if (chara === 'A' || chara === 'E' || chara === 'I' || chara === 'O' || chara === 'U' ||
    chara === 'a' || chara === 'e' || chara === 'i' || chara === 'o' || chara === 'u') {
    console.log(chara + " is a vowel.");
} else {
    console.log(chara + " is a consonant.");
}


Q5:
var number = 545454;
var user1 = prompt("Enter your Password")

if (user1 === "") {
    alert("please enter ur password")
} else if (user1 === "545454") {
    alert("Correct!")
} else {
    alert("incorrect passoword")
}


Q6
var hour = 13;
if (hour < 18) {
    alert("Good day!")
} else {
    alert("Good evening")
}


Q7
let time = 1900;

if (time >= 0 && time < 1200) {
    console.log("Good Morning!");
} else if (time >= 1200 && time < 1700) {
    console.log("Good Afternoon!");
} else if (time >= 1700 && time <= 2359) {
    console.log("Good Evening!");
} else {
    console.log("Invalid time format. Please enter time in 24-hour format (0000 - 2359).");
}
*/


//Chapter 14 to 16

/*
// Q1
var arr = ["habiba"];
console.log(arr)


//Q2

var arr = ["hello", "hi"]
console.log(arr)


//Q3

var arr = [2]
console.log(arr)


//Q4

var arr = [true]
console.log(arr)


//Q5

var arr = ["hello", 2 , "true"]
console.log(arr)


//Q6

var arr = ["Qualifications", "SSC" , "HSC" , "BCS", "BS", "BCOM", "MS" , "M.PHIL", "PHD"]
console.log(arr)


//Q7


var studentNames = ["Michael", "John", "Tony"];


var studentScores = [320, 230, 480];


var totalMarks = 500;

for (var i = 0; i < studentNames.length; i++) {
    var percentage = (studentScores[i] / totalMarks) * 100;
    console.log("Score of " + studentNames[i] + " is " + studentScores[i] + ". Percentage: " + percentage + "%");
}

var students = ["Michael", "John", "Tony"];
var scores = [320, 230, 480];
var totalMarks = 500;

console.log("Q8: Student Scores and Percentages:");
for (var i = 0; i < students.length; i++) {
    var percentage = (scores[i] / totalMarks) * 100;
    console.log("Score of " + students[i] + " is " + scores[i] + ". Percentage: " + percentage + "%");
}
console.log("\n");


var colors = ["Red", "Green", "Blue"];
console.log("Q9: Initial Colors:", colors);


colors.unshift("Purple");
console.log("a. After adding to beginning:", colors);

colors.push("Orange");
console.log("b. After adding to end:", colors);


colors.unshift("Pink", "Yellow");
console.log("c. After adding two more to beginning:", colors);


colors.shift();
console.log("d. After deleting first color:", colors);

colors.pop();
console.log("e. After deleting last color:", colors);


colors.splice(2, 0, "Brown");
console.log("f. After adding 'Brown' at index 2:", colors);


colors.splice(1, 2);
console.log("g. After deleting 2 colors from index 1:", colors);
console.log("\n");

var studentScores = [320, 230, 480, 120];
console.log("Q10: Scores of Students:", studentScores);

studentScores.sort(function(a, b) {
    return a - b;
});
console.log("Ordered Scores of Students:", studentScores);
console.log("\n");


var cities = ["Karachi", "Lahore", "Islamabad", "Quetta", "Peshawar"];
console.log("Q11: Cities list:", cities);

var selectedCities = cities.slice(2, 4);
console.log("Selected cities list:", selectedCities);
console.log("\n");


var arr = ["This", " is", " my", " cat"];
var singleString = arr.join("");
console.log("Q12: Joined string:", singleString);


var fifoQueue = [];


fifoQueue.push("Keyboard");
fifoQueue.push("Mouse");
fifoQueue.push("Printer");
fifoQueue.push("Monitor");

console.log("Q13: FIFO Queue Access (First In First Out)");
console.log("Original Queue:", fifoQueue);

console.log("Out 1:", fifoQueue.shift());
console.log("Out 2:", fifoQueue.shift());
console.log("Out 3:", fifoQueue.shift());
console.log("Out 4:", fifoQueue.shift());

//Q14
var lifoStack = [];


lifoStack.push("keyboard");
lifoStack.push("mouse");
lifoStack.push("printer");
lifoStack.push("monitor");

console.log("Q14: LIFO Stack Access (Last In First Out)");
console.log("Original Stack:", lifoStack);

console.log("Out:", lifoStack.pop());
console.log("Out:", lifoStack.pop());
console.log("Out:", lifoStack.pop());
console.log("Out:", lifoStack.pop());

//Q15


var manufacturers = ["Apple", "Samsung", "Motorola", "Nokia", "Sony", "Haier"];


var dropdown = '<select name="manufacturers">\n';


for (var i = 0; i < manufacturers.length; i++) {
  dropdown += '<option value="' + manufacturers[i] + '">' + manufacturers[i] + '</option>\n';
}


dropdown += '</select>';


console.log(dropdown);
   */

//chapter 17 to 20

/*
Q1

var arr3 = [[]]
console.log(arr3)


Q2
var matrix = [
  [0, 1, 2, 3],
  [1, 0, 1, 2],
  [2, 1, 0, 1]
];
console.log(matrix)


Q3

for (var i = 1; i <= 10; i++) {
  console.log(i)
}


Q4

var input = prompt("Enter a number:");

if (input === "" || input === null) {
  alert("Input is empty or canceled.");
} else {
  var number = input * 1;

  if (number == 0 && input !== "0") {
    alert("Invalid number entered.");
  } else {
    var table = [];

    for (var i = 1; i <= 10; i++) {
      var sent = number + " * " + i + " = " + (number * i);
      table.push(sent);
    }
    for (var us = 0; us < table.length * 1; us++) {
      document.write("<div class='sent'>" + table[us] + "</div>");
    }
  }
}


Q5

var fruits = ["apple", "banana", "mango", "kivi"]
console.log(fruits)
console.log("Elements at 0 index is apple \n Elements at 1 index is banana \n Elements at 2 index is mango \n Elements at 3 index is kivi")

Q6
for (var j = 0; j <= 15; j++) {
  console.log(j)
}

console.log("reverse counting")
for (var k = 15; k >= 0; k--) {
  console.log(k)
}

console.log("Even and odd")
var num = prompt("Enter a number:");
if (num % 2 === 0) {
  alert(num + " is an even number");
} else {
  alert(num + " is an odd number");
}

console.log("Series")
for (var f = 0; f <= 20; f++) {
  console.log(f + "k")
}


Q7


var user = prompt("Enter yuor dish")
var a = ["apple pie", "cookie", "chips", "cake"]

if (user === "apple pie") {
  alert("apple pie is available at 0 index in our bakery")
}
else if (user === "cookie") {
  alert("cookie is available at 1 index in our bakery")
}
else if (user === "chips") {
  alert("chips is available at 2 index in our bakery")
}
else if (user === "cake") {
  alert("cake is available at 3 index in our bakery")
}
else {
  alert("We are sorry," + user + "is not available in our bakery")
}


Q8

let A = [24, 53, 78, 91, 12];
let biggest = A[0];

for (let i = 1; i < A.length; i++) {
  if (A[i] > biggest) {
    biggest = A[i];
  }
}

alert("The biggest number is " + biggest);


Q9

let B = [24, 53, 78, 91, 12];
let smallest = A[0];

for (let i = 1; i < B.length; i++) {
  if (B[i] < smallest) {
    smallest = B[i];
  }
}

alert("The smallest number is " + smallest);


Q10

for (let i = 1; i <= 100; i++) {
    if (i % 5 === 0) {
        document.write(" <br>" + i + ", ");
    }
}

*/
    </script>
</body>
</html>