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each.js
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each.js
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module.exports = function each(arr) {
// discuss at: https://locutus.io/php/each/
// original by: Ates Goral (https://magnetiq.com)
// revised by: Brett Zamir (https://brett-zamir.me)
// note 1: Uses global: locutus to store the array pointer
// example 1: each({a: "apple", b: "balloon"})
// returns 1: {0: "a", 1: "apple", key: "a", value: "apple"}
const $global = typeof window !== 'undefined' ? window : global
$global.$locutus = $global.$locutus || {}
const $locutus = $global.$locutus
$locutus.php = $locutus.php || {}
$locutus.php.pointers = $locutus.php.pointers || []
const pointers = $locutus.php.pointers
const indexOf = function (value) {
for (let i = 0, length = this.length; i < length; i++) {
if (this[i] === value) {
return i
}
}
return -1
}
if (!pointers.indexOf) {
pointers.indexOf = indexOf
}
if (pointers.indexOf(arr) === -1) {
pointers.push(arr, 0)
}
const arrpos = pointers.indexOf(arr)
const cursor = pointers[arrpos + 1]
let pos = 0
if (Object.prototype.toString.call(arr) !== '[object Array]') {
let ct = 0
for (const k in arr) {
if (ct === cursor) {
pointers[arrpos + 1] += 1
if (each.returnArrayOnly) {
return [k, arr[k]]
} else {
return {
1: arr[k],
value: arr[k],
0: k,
key: k,
}
}
}
ct++
}
// Empty
return false
}
if (arr.length === 0 || cursor === arr.length) {
return false
}
pos = cursor
pointers[arrpos + 1] += 1
if (each.returnArrayOnly) {
return [pos, arr[pos]]
} else {
return {
1: arr[pos],
value: arr[pos],
0: pos,
key: pos,
}
}
}