mirror of
https://github.com/idanoo/GoScrobble.git
synced 2024-11-23 00:45:16 +00:00
27 lines
657 B
JavaScript
27 lines
657 B
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
var GetIntrinsic = require('get-intrinsic');
|
||
|
|
|
||
|
|
var $RangeError = GetIntrinsic('%RangeError%');
|
||
|
|
|
||
|
|
var ToInteger = require('./ToInteger');
|
||
|
|
var ToLength = require('./ToLength');
|
||
|
|
var SameValue = require('./SameValue');
|
||
|
|
|
||
|
|
// https://262.ecma-international.org/12.0/#sec-toindex
|
||
|
|
|
||
|
|
module.exports = function ToIndex(value) {
|
||
|
|
if (typeof value === 'undefined') {
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
var integerIndex = ToInteger(value);
|
||
|
|
if (integerIndex < 0) {
|
||
|
|
throw new $RangeError('index must be >= 0');
|
||
|
|
}
|
||
|
|
var index = ToLength(integerIndex);
|
||
|
|
if (!SameValue(integerIndex, index)) {
|
||
|
|
throw new $RangeError('index must be >= 0 and < 2 ** 53 - 1');
|
||
|
|
}
|
||
|
|
return index;
|
||
|
|
};
|