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LibJS: Add Array.prototype.unshift()

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Linus Groh 2020-04-13 16:46:27 +01:00 • committed by Andreas Kling
parent 5da1a40ccf
commit 29253bf932
3 changed files with 42 additions and 0 deletions
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30
Libraries/LibJS/Tests/Array.prototype.unshift.js Normal file
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@ -0,0 +1,30 @@
load("test-common.js");
try {
assert(Array.prototype.unshift.length === 1);
var a = ["hello"];
var length = a.unshift();
assert(length === 1);
assert(a.length === 1);
assert(a[0] === "hello");
length = a.unshift("friends");
assert(length === 2);
assert(a.length === 2);
assert(a[0] === "friends");
assert(a[1] === "hello");
length = a.unshift(1, 2, 3);
assert(length === 5);
assert(a.length === 5);
assert(a[0] === 1);
assert(a[1] === 2);
assert(a[2] === 3);
assert(a[3] === "friends");
assert(a[4] === "hello");
console.log("PASS");
} catch (e) {
console.log("FAIL: " + e);
}