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LibJS: Support spreading of strings and string objects

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This commit is contained in:
Linus Groh 2020-04-27 14:01:04 +01:00 • committed by Andreas Kling
parent bcd5e97286
commit 30fe1b5d58
3 changed files with 60 additions and 19 deletions
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12
Libraries/LibJS/Tests/array-spread.js
View file

@ -24,17 +24,17 @@ try {
assert(testArray(arr));
assertThrowsError(() => {
[...1];
[...1];
}, {
error: TypeError,
message: "1 is not iterable",
error: TypeError,
message: "1 is not iterable",
});
assertThrowsError(() => {
[...{}];
[...{}];
}, {
error: TypeError,
message: "[object Object] is not iterable",
error: TypeError,
message: "[object Object] is not iterable",
});
console.log("PASS");

31
Libraries/LibJS/Tests/string-spread.js Normal file
View file

@ -0,0 +1,31 @@
load("test-common.js");
function testArray(arr) {
return arr.length === 4 &&
arr[0] === "a" &&
arr[1] === "b" &&
arr[2] === "c" &&
arr[3] === "d";
}
try {
var arr;
arr = ["a", ..."bc", "d"];
assert(testArray(arr));
let s = "bc";
arr = ["a", ...s, "d"];
assert(testArray(arr));
let obj = { a: "bc" };
arr = ["a", ...obj.a, "d"];
assert(testArray(arr));
arr = [..."", ...[...new String("abc")], "d"];
assert(testArray(arr));
console.log("PASS");
} catch (e) {
console.log("FAIL: " + e);
}