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LibJS: Implement rest parameters

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This commit is contained in:
Linus Groh 2020-05-04 16:05:13 +01:00 • committed by Andreas Kling
parent 9df71afdb3
commit 454c1e6bbe
5 changed files with 98 additions and 10 deletions
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57
Libraries/LibJS/Tests/function-rest-params.js Normal file
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@ -0,0 +1,57 @@
load("test-common.js");
try {
function foo(...a) {
assert(a instanceof Array);
assert(a.length === 0);
}
foo();
function foo(...a) {
assert(a instanceof Array);
assert(a.length === 4);
assert(a[0] === "foo");
assert(a[1] === 123);
assert(a[2] === undefined);
assert(a[3].foo === "bar");
}
foo("foo", 123, undefined, { foo: "bar" });
function foo(a, b, ...c) {
assert(a === "foo");
assert(b === 123);
assert(c instanceof Array);
assert(c.length === 0);
}
foo("foo", 123);
function foo(a, b, ...c) {
assert(a === "foo");
assert(b === 123);
assert(c instanceof Array);
assert(c.length === 2);
assert(c[0] === undefined);
assert(c[1].foo === "bar");
}
foo("foo", 123, undefined, { foo: "bar" });
var foo = (...a) => {
assert(a instanceof Array);
assert(a.length === 0);
};
foo();
var foo = (a, b, ...c) => {
assert(a === "foo");
assert(b === 123);
assert(c instanceof Array);
assert(c.length === 2);
assert(c[0] === undefined);
assert(c[1].foo === "bar");
};
foo("foo", 123, undefined, { foo: "bar" });
console.log("PASS");
} catch (e) {
console.log("FAIL: " + e);
}