10 examples of 'javascript uuid generator' in JavaScript

19
function generatorUUID() {
20
    var d = new Date().getTime();
21
    var uuid = "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function (c) {
22
        var r = (d + Math.random() * 16) % 16 | 0;
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        d = Math.floor(d / 16);
24
        return (c === "x" ? r : (r & 0x3) | 0x8).toString(16);
25
    });
26
27
    return uuid;
28
}

61
function generateUuid() {
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    return Math.random().toString() +
63
        Math.random().toString() +
64
        Math.random().toString();
65
}

9
export function uuid(length: number = 32): string {
10
  let s = new Array(length);
11
  let hexDigits = '0123456789abcdef';
12
  let nChars = hexDigits.length;
13
  for (let i = 0; i < length; i++) {
14
    s[i] = hexDigits.charAt(Math.floor(Math.random() * nChars));
15
  }
16
  return s.join('');
17
}

13
export function uuid(a = undefined)
14
{
15
    // https://gist.github.com/jed/982883
16
    return a?(a^Math.random()*16>>a/4).toString(16):([1e7]+-1e3+-4e3+-8e3+-1e11).replace(/[018]/g,uuid);
17
}

8
function generateUuid() {
9
  let uuid = "",
10
    i,
11
    random;
12
  for (let i = 0; i < 32; i++) {
13
    random = (Math.random() * 16) | 0;
14
15
    if (i == 8 || i == 12 || i == 16 || i == 20) {
16
      uuid += "-";
17
    }
18
    uuid += (i == 12 ? 4 : i == 16 ? (random & 3) | 8 : random).toString(16);
19
  }
20
  return uuid;
21
}

5
export default function uuid () {
6
7
  let uuid = ''
8
  let i
9
  let random
10
11
  for (i = 0; i < 32; i++) {
12
    random = Math.random() * 16 | 0
13
    if (i === 8 || i === 12 || i === 16 || i === 20) {
14
      uuid += '-'
15
    }
16
    uuid += (i === 12 ? 4 : (i === 16 ? (random & 3 | 8) : random)).toString(16)
17
  }
18
19
  return uuid
20
21
}

78
function generateUUID() {
79
    var d = new Date().getTime();
80
    var uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
81
        var r = (d + Math.random()*16)%16 | 0;
82
        d = Math.floor(d/16);
83
        return (c=='x' ? r : (r&0x3|0x8)).toString(16);
84
    });
85
    return uuid;
86
};

35
export function UUID (): string {
36
  function s4 () {
37
    return Math.floor((1 + Math.random()) * 0x10000)
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      .toString(16)
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      .substring(1)
40
  }
41
  return s4() + s4() + '-' + s4() + '-' + s4() + '-' +
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    s4() + '-' + s4() + s4() + s4()
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}

6
function generateUUID() { // Public Domain/MIT
7
    var d = new Date().getTime();
8
    if (typeof performance !== 'undefined' && typeof performance.now === 'function') {
9
        d += performance.now(); //use high-precision timer if available
10
    }
11
    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
12
        var r = (d + Math.random() * 16) % 16 | 0;
13
        d = Math.floor(d / 16);
14
        return (c === 'x' ? r : (r & 0x3 | 0x8)).toString(16);
15
    });
16
}

5
function createUUID () {
6
  return String(Date.now() + Math.random());
7
}