main repo

node_modules/es-abstract/2024/ToIndex.js

@@ -0,0 +1,20 @@
+'use strict';
+
+var $RangeError = require('es-errors/range');
+
+var ToIntegerOrInfinity = require('./ToIntegerOrInfinity');
+
+var maxSafeInteger = require('../helpers/maxSafeInteger');
+
+// https://262.ecma-international.org/15.0/#sec-toindex
+
+module.exports = function ToIndex(value) {
+	if (typeof value === 'undefined') {
+		return 0;
+	}
+	var integer = ToIntegerOrInfinity(value);
+	if (integer < 0 || integer >= maxSafeInteger) {
+		throw new $RangeError('index must be >= 0 and < 2 ** 53 - 1');
+	}
+	return integer;
+};