From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- js/src/tests/non262/Array/from_this.js | 48 ++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 js/src/tests/non262/Array/from_this.js (limited to 'js/src/tests/non262/Array/from_this.js') diff --git a/js/src/tests/non262/Array/from_this.js b/js/src/tests/non262/Array/from_this.js new file mode 100644 index 0000000000..978c90b871 --- /dev/null +++ b/js/src/tests/non262/Array/from_this.js @@ -0,0 +1,48 @@ +/* Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/licenses/publicdomain/ */ + +// The third argument to Array.from is passed as the 'this' value to the +// mapping function. +var hits = 0, obj = {}; +function f(x) { + assertEq(this, obj); + hits++; +} +Array.from(["a", "b", "c"], f, obj); +assertEq(hits, 3); + +// Without an argument, undefined is passed... +hits = 0; +function gs(x) { + "use strict"; + assertEq(this, undefined); + hits++; +} +Array.from("def", gs); +assertEq(hits, 3); + +// ...and if the mapping function is non-strict, that means the global is +// passed. +var global = this; +hits = 0; +function g(x) { + assertEq(this, global); + hits++; +} +Array.from("ghi", g); +assertEq(hits, 3); + +// A primitive value can be passed. +for (var v of [0, "str", undefined]) { + hits = 0; + var mapfn = function h(x) { + "use strict"; + assertEq(this, v); + hits++; + }; + Array.from("pq", mapfn, v); + assertEq(hits, 2); +} + +if (typeof reportCompare === 'function') + reportCompare(0, 0); -- cgit v1.2.3