Urara-Blog/node_modules/.pnpm-store/v3/files/73/d1bfc76fedd29561d34d31fd41ec73a68f9173953df60f21995b1c30d4bef1ccffb0819e3a1510dd1f055582b836da4ca89e8aa186826c71210c3867c185f0
2022-08-14 01:14:53 +08:00

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Text

'use strict';
var GetIntrinsic = require('get-intrinsic');
var CodePointAt = require('./CodePointAt');
var IsIntegralNumber = require('./IsIntegralNumber');
var Type = require('./Type');
var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
var $TypeError = GetIntrinsic('%TypeError%');
// https://ecma-international.org/ecma-262/12.0/#sec-advancestringindex
module.exports = function AdvanceStringIndex(S, index, unicode) {
if (Type(S) !== 'String') {
throw new $TypeError('Assertion failed: `S` must be a String');
}
if (!IsIntegralNumber(index) || index < 0 || index > MAX_SAFE_INTEGER) {
throw new $TypeError('Assertion failed: `length` must be an integer >= 0 and <= 2**53');
}
if (Type(unicode) !== 'Boolean') {
throw new $TypeError('Assertion failed: `unicode` must be a Boolean');
}
if (!unicode) {
return index + 1;
}
var length = S.length;
if ((index + 1) >= length) {
return index + 1;
}
var cp = CodePointAt(S, index);
return index + cp['[[CodeUnitCount]]'];
};