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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#if JS_HAS_INTL_API
var numberFormatCache = new_Record();
/**
* Format this Number object into a string, using the locale and formatting options
* provided.
*
* Spec: ECMAScript Language Specification, 5.1 edition, 15.7.4.3.
* Spec: ECMAScript Internationalization API Specification, 13.2.1.
*/
function Number_toLocaleString() {
// Steps 1-2.
var x = callFunction(ThisNumberValueForToLocaleString, this);
// Steps 2-3.
var locales = ArgumentsLength() ? GetArgument(0) : undefined;
var options = ArgumentsLength() > 1 ? GetArgument(1) : undefined;
// Step 4.
var numberFormat;
if (locales === undefined && options === undefined) {
// This cache only optimizes for the old ES5 toLocaleString without
// locales and options.
if (!intl_IsRuntimeDefaultLocale(numberFormatCache.runtimeDefaultLocale)) {
numberFormatCache.numberFormat = intl_NumberFormat(locales, options);
numberFormatCache.runtimeDefaultLocale = intl_RuntimeDefaultLocale();
}
numberFormat = numberFormatCache.numberFormat;
} else {
numberFormat = intl_NumberFormat(locales, options);
}
// Step 5.
return intl_FormatNumber(numberFormat, x, /* formatToParts = */ false);
}
#endif // JS_HAS_INTL_API
// ES6 draft ES6 20.1.2.4
function Number_isFinite(num) {
if (typeof num !== "number") {
return false;
}
return num - num === 0;
}
// ES6 draft ES6 20.1.2.2
function Number_isNaN(num) {
if (typeof num !== "number") {
return false;
}
return num !== num;
}
// ES2021 draft rev 889f2f30cf554b7ed812c0984626db1c8a4997c7
// 20.1.2.3 Number.isInteger ( number )
function Number_isInteger(number) {
// Step 1. (Inlined call to IsIntegralNumber)
// 7.2.6 IsIntegralNumber, step 1.
if (typeof number !== "number") {
return false;
}
var integer = std_Math_trunc(number);
// 7.2.6 IsIntegralNumber, steps 2-4.
// |number - integer| ensures Infinity correctly returns false, because
// |Infinity - Infinity| yields NaN.
return number - integer === 0;
}
// ES2021 draft rev 889f2f30cf554b7ed812c0984626db1c8a4997c7
// 20.1.2.5 Number.isSafeInteger ( number )
function Number_isSafeInteger(number) {
// Step 1. (Inlined call to IsIntegralNumber)
// 7.2.6 IsIntegralNumber, step 1.
if (typeof number !== "number") {
return false;
}
var integer = std_Math_trunc(number);
// 7.2.6 IsIntegralNumber, steps 2-4.
// |number - integer| to handle the Infinity case correctly.
if (number - integer !== 0) {
return false;
}
// Steps 1.a, 2.
// prettier-ignore
return -((2 ** 53) - 1) <= integer && integer <= (2 ** 53) - 1;
}
function Global_isNaN(number) {
return Number_isNaN(ToNumber(number));
}
function Global_isFinite(number) {
return Number_isFinite(ToNumber(number));
}