10 examples of 'javascript array push front' in JavaScript

7
function popFront(arr) {
8
    var temp = arr[0];
9
    for (var x = 0; x < arr.length-1; x++){
10
        var swap = arr[x];
11
        arr[x] = arr[x+1];
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        arr[x+1] = swap;
13
    }
14
    arr.pop();
15
    return temp;
16
}

104
function push (array, value) {
105
  array.push(value)
106
  return array
107
}

331
function unshift (self, item) {
332
  self.head = new Node(item, null, self.head, self)
333
  if (!self.tail) {
334
    self.tail = self.head
335
  }
336
  self.length ++
337
}

384
function push (self, item) {
385
  self.tail = new Node(item, self.tail, null, self)
386
  if (!self.head) {
387
    self.head = self.tail
388
  }
389
  self.length++
390
}

69
get_front() {
70
    return this.get_next(this);
71
}

235
insert(index, element) {
236
  dart.as(element, E);
237
  this[_checkInsertIndex](index);
238
  this.callMethod('splice', [index, 0, element]);
239
}

22
front() {
23
  let q = items.get(this);
24
  return q[0];
25
}

48
get front(): Item {
49
  return this._queue[0];
50
}

80
peekFront(): T {
81
  if (this._length) {
82
    return this.head.value;
83
  }
84
  return undefined;
85
}

1
module.exports = function array_push (inputArr) { // eslint-disable-line camelcase
2
  //  discuss at: https://locutus.io/php/array_push/
3
  // original by: Kevin van Zonneveld (https://kvz.io)
4
  // improved by: Brett Zamir (https://brett-zamir.me)
5
  //      note 1: Note also that IE retains information about property position even
6
  //      note 1: after being supposedly deleted, so if you delete properties and then
7
  //      note 1: add back properties with the same keys (including numeric) that had
8
  //      note 1: been deleted, the order will be as before; thus, this function is not
9
  //      note 1: really recommended with associative arrays (objects) in IE environments
10
  //   example 1: array_push(['kevin','van'], 'zonneveld')
11
  //   returns 1: 3
12
13
  var i = 0
14
  var pr = ''
15
  var argv = arguments
16
  var argc = argv.length
17
  var allDigits = /^\d$/
18
  var size = 0
19
  var highestIdx = 0
20
  var len = 0
21
22
  if (inputArr.hasOwnProperty('length')) {
23
    for (i = 1; i < argc; i++) {
24
      inputArr[inputArr.length] = argv[i]
25
    }
26
    return inputArr.length
27
  }
28
29
  // Associative (object)
30
  for (pr in inputArr) {
31
    if (inputArr.hasOwnProperty(pr)) {
32
      ++len
33
      if (pr.search(allDigits) !== -1) {
34
        size = parseInt(pr, 10)
35
        highestIdx = size > highestIdx ? size : highestIdx
36
      }
37
    }
38
  }
39
  for (i = 1; i < argc; i++) {
40
    inputArr[++highestIdx] = argv[i]
41
  }
42
43
  return len + i - 1
44
}