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reset.js
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reset.js
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module.exports = function reset(arr) {
// discuss at: https://locutus.io/php/reset/
// original by: Kevin van Zonneveld (https://kvz.io)
// bugfixed by: Legaev Andrey
// revised by: Brett Zamir (https://brett-zamir.me)
// note 1: Uses global: locutus to store the array pointer
// example 1: reset({0: 'Kevin', 1: 'van', 2: 'Zonneveld'})
// returns 1: 'Kevin'
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)
if (Object.prototype.toString.call(arr) !== '[object Array]') {
for (const k in arr) {
if (pointers.indexOf(arr) === -1) {
pointers.push(arr, 0)
} else {
pointers[arrpos + 1] = 0
}
return arr[k]
}
// Empty
return false
}
if (arr.length === 0) {
return false
}
pointers[arrpos + 1] = 0
return arr[pointers[arrpos + 1]]
}