9 examples of 'js prepend to array' in JavaScript

1
function append(array, value) {
2
  array.push(value);
3
  return array;
4
};

168
function arrayPush(array, values) {
169
  var index = -1, length = values.length, offset = array.length
170
171
  while (++index < length) {
172
    array[offset + index] = values[index]
173
  }
174
  return array
175
}

1758
function arrayPush(array, values) {
1759
  var index = -1,
1760
      length = values.length,
1761
      offset = array.length;
1762
1763
  while (++index < length) {
1764
    array[offset + index] = values[index];
1765
  }
1766
  return array;
1767
}

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

492
private static arrayPush( array: any[], values: any[] ): any[] {
493
  var index = -1,
494
    length = values.length,
495
    offset = array.length;
496
497
  while ( ++index < length ) {
498
    array[ offset + index ] = values[ index ];
499
  }
500
  return array;
501
}

11
function __prepend<a>(value: A, list: List<a>): Array<a> {
12
  const itemCount = length(list) + 1
13
  const newList = Array(itemCount)
14
15
  newList[0] = value
16
17
  for (let i = 1; i &lt; itemCount; ++i) newList[i] = list[i - 1]
18
19
  return newList
20
}</a></a></a>

124
function unshift() {
125
  return this._applyArrayMethod(arguments, 1, function(arr, args) {
126
    return arr.unshift.apply(arr, args);
127
  });
128
}

7
function prepend(x, arr) {
8
  if (arguments.length === 1) return function (arrHolder) {
9
    return prepend(x, arrHolder);
10
  };
11
12
  if (typeof arr === 'string') {
13
14
    return '' + x + arr;
15
  }
16
  var clone = arr.concat();
17
  clone.unshift(x);
18
19
  return clone;
20
}

47
export function append(array: Arrayable, item: T): Arrayable {
48
  return splice(array, array.length, 0, item)
49
}