57 lines
1.2 KiB
JavaScript
57 lines
1.2 KiB
JavaScript
function assert(x) { if (!x) throw 1; }
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try {
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let getNumber = () => 42;
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assert(getNumber() === 42);
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let add = (a, b) => a + b;
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assert(add(2, 3) === 5);
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const addBlock = (a, b) => {
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let res = a + b;
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return res;
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};
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assert(addBlock(5, 4) === 9);
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const makeObject = (a, b) => ({ a, b });
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const obj = makeObject(33, 44);
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assert(typeof obj === "object");
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assert(obj.a === 33);
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assert(obj.b === 44);
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let returnUndefined = () => {};
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assert(typeof returnUndefined() === "undefined");
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const makeArray = (a, b) => [a, b];
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const array = makeArray("3", { foo: 4 });
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assert(array[0] === "3");
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assert(array[1].foo === 4);
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let square = x => x * x;
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assert(square(3) === 9);
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let squareBlock = x => {
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return x * x;
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};
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assert(squareBlock(4) === 16);
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const message = (who => "Hello " + who)("friends!");
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assert(message === "Hello friends!");
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const sum = ((x, y, z) => x + y + z)(1, 2, 3);
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assert(sum === 6);
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const product = ((x, y, z) => {
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let res = x * y * z;
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return res;
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})(5, 4, 2);
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assert(product === 40);
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const half = (x => {
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return x / 2;
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})(10);
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assert(half === 5);
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console.log("PASS");
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} catch {
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console.log("FAIL");
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}
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