10 examples of 'javascript random string from array' in JavaScript

109
function getRandomString(length, chars) {
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    var string = '';
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    for (var i = length; i > 0; --i) string += chars[Math.floor(Math.random() * chars.length)];
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    return string;
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}

84
export function randomString(length = 8) {
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  return [...Array(length)].map(() => (~~(Math.random() * 36)).toString(36)).join("")
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}

130
randomString() {
131
  return lipsum[Math.floor(Math.random() * 100)]
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}

19
function randomString() {
20
  const length = (Math.floor(Math.random() * 25) + 10);
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  let str = '';
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  for (let i = 0; i < length; i += 1) {
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      str += String.fromCharCode(Math.floor(Math.random() * 255))
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  }
25
  return str;
26
}

62
function randomString(length, chars) {
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    var mask = "";
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    if (chars.indexOf("a") > -1) mask += "abcdefghijklmnopqrstuvwxyz";
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    if (chars.indexOf("A") > -1) mask += "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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    if (chars.indexOf("#") > -1) mask += "0123456789";
67
    if (chars.indexOf("!") > -1) mask += '~`!@#$%^&*()_+-={}[]:";\"<>?,./|\\';
68
    var result = "";
69
    for (var i = length; i > 0; --i) {
70
        result += mask[Math.floor(Math.random() * mask.length)]
71
    }
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    return result;
73
}

42
public static stringRandom(chars: number): string{
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    let text = "";
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    let possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
45
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    for( let i = 0; i < chars; i++ )
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        text += possible.charAt(Math.floor(Math.random() * possible.length));
48
49
    return text;
50
}

9
export function randomString(length) {
10
	const buffer = [];
11
	const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
12
	for (let i = 0; i < length; i++) {
13
		buffer.push(chars[getRandomInt(chars.length)]);
14
	}
15
	return buffer.join('');
16
}

31
function randomString(len) {
32
    const buf = [],
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        chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789',
34
        charLen = chars.length;
35
36
    for (let i = 0; i < len; ++i) {
37
        buf.push(chars[getRandomInt(0, charLen - 1)]);
38
    }
39
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    return buf.join('');
41
}

20
function randomString() {
21
  var text = "";
22
  var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
23
24
  for (var i = 0; i < 2; i++)
25
    text += possible.charAt(Math.floor(Math.random() * possible.length));
26
27
  return text;
28
}

29
export function randomString () {
30
  var string = ''
31
  var possible = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
32
33
  for (var i = 0; i < 5; i++) { string += possible.charAt(Math.floor(Math.random() * possible.length)) }
34
35
  return string
36
}