单项选择题 const a = {};const b = { key: "b" };const c = { key: "c" };a[b] = 123;a[c] = 456;console.log(a[b]);()
单项选择题 String.prototype.giveLydiaPizza = () => {return "Just give Lydia pizza already!";};const name = "Lydia";name.giveLydiaPizza();()
单项选择题 for (let i = 1; i < 5; i++) {if (i === 3) continue;console.log(i);}()