Sha256: f7e32b1cdbe490fd5055b2eaf9e381d3d1868fdbd138784d9c50d065af5eb780
Contents?: true
Size: 842 Bytes
Versions: 54
Compression:
Stored size: 842 Bytes
Contents
'use strict';
var GetIntrinsic = require('get-intrinsic');
var callBound = require('call-bind/callBound');
var $TypeError = GetIntrinsic('%TypeError%');
var StringToCodePoints = require('./StringToCodePoints');
var Type = require('./Type');
var isInteger = require('../helpers/isInteger');
var $indexOf = callBound('String.prototype.indexOf');
// https://262.ecma-international.org/13.0/#sec-getstringindex
module.exports = function GetStringIndex(S, e) {
if (Type(S) !== 'String') {
throw new $TypeError('Assertion failed: `S` must be a String');
}
if (!isInteger(e) || e < 0) {
throw new $TypeError('Assertion failed: `e` must be a non-negative integer');
}
if (S === '') {
return 0;
}
var codepoints = StringToCodePoints(S);
var eUTF = e >= codepoints.length ? S.length : $indexOf(S, codepoints[e]);
return eUTF;
};
Version data entries
54 entries across 27 versions & 2 rubygems