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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/non262/Array/from_this.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/Array/from_this.js | 48 |
1 files changed, 48 insertions, 0 deletions
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); |