10 examples of 'javascript push object into array at index' in JavaScript

9
function insertIntoArray(array: T[], object: T): T[] {
10
  return array ? [object, ...array] : [object];
11
}

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

35
export function insertAt (array, index, value) {
36
  array.splice(index, 0, value)
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  return array
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}

18
static up(array, index, callback) {
19
  if (index > 0) {
20
    const newIndex = index - 1;
21
    const currentElement = _.clone(array[index], true);
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    array.splice(index, 1);
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    array.splice(newIndex, 0, currentElement);
24
    if (callback) {
25
      callback();
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    }
27
  }
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}

11
at (index, value) {
12
  if (value !== undefined) {
13
    if (this._array[index] !== undefined) {
14
      this._removeValue(this._array[index])
15
    }
16
17
    this._addValue(this._array[index] = value)
18
  }
19
20
  return this._array[index]
21
}

62
var pushOrCreateArrayAt = function pushOrCreateArrayAt(object, key, valueToPush) {
63
	// don't need to use hasOwnProp as there is no array in the prototype
64
	// but still use it to avoid a warning
65
	// const potentialArray = object[key]
66
	if (Object.prototype.hasOwnProperty.call(object, key)) {
67
		// eventually the if is always true
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		object[key].push(valueToPush);
69
	} else {
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		// only for the first time
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		object[key] = [valueToPush];
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	}
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};

95
var pushOrCreateArrayAt = function pushOrCreateArrayAt(object, key, valueToPush) {
96
    // don't need to use hasOwnProp as there is no array in the prototype
97
    // but still use it to avoid a warning
98
    // const potentialArray = object[key]
99
    if (hasOwnProperty.call(object, key)) {
100
        // eventually the if is always true
101
        object[key].push(valueToPush);
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    } else {
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        // only for the first time
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        object[key] = [valueToPush];
105
    }
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};

158
export function array_item_at(array: T[], index: number): T {
159
    if (index >= array.length) {
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        return array[index % array.length];
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    }
162
    else if (index < 0) {
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        return array[array.length - (-index % array.length)];
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    }
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    else {
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        return array[index];
167
    }
168
}

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)
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  // 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')) {
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    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
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}

30
public removeAt(index: number): this {
31
    const argumentName = this._getNextArgumentName();
32
33
    this._scriptLines.push("this." + this._pathToArray + ".splice(args." + argumentName + ", 1);");
34
    this._parameters[argumentName] = index;
35
    return this;
36
}