Sha256: 2fd31a89f621fcc31d34bed9b9b7ea2c8559bf8281555d80683561506963c1e1
Contents?: true
Size: 1.23 KB
Versions: 27
Compression:
Stored size: 1.23 KB
Contents
'use strict';
var GetIntrinsic = require('get-intrinsic');
var $TypeError = GetIntrinsic('%TypeError%');
var callBound = require('call-bind/callBound');
var $indexOf = callBound('String.prototype.indexOf');
var IsArray = require('./IsArray');
var Type = require('./Type');
var WordCharacters = require('./WordCharacters');
var assertRecord = require('../helpers/assertRecord');
var every = require('../helpers/every');
var isInteger = require('../helpers/isInteger');
var isChar = function isChar(c) {
return typeof c === 'string';
};
// https://262.ecma-international.org/14.0/#sec-runtime-semantics-iswordchar-abstract-operation
// note: prior to ES2023, this AO erroneously omitted the latter of its arguments.
module.exports = function IsWordChar(rer, Input, e) {
assertRecord(Type, 'RegExp Record', 'rer', rer);
if (!IsArray(Input) || !every(Input, isChar)) {
throw new $TypeError('Assertion failed: `Input` must be a List of characters');
}
if (!isInteger(e)) {
throw new $TypeError('Assertion failed: `e` must be an integer');
}
var InputLength = Input.length; // step 1
if (e === -1 || e === InputLength) {
return false; // step 2
}
var c = Input[e]; // step 3
return $indexOf(WordCharacters(rer), c) > -1; // steps 4-5
};
Version data entries
27 entries across 27 versions & 2 rubygems