
此题考函数式编程:
const sum = (x, y) => (typeof y === "undefined") ? (y)=> x+y : x+y
console.log(sum(1,3));
console.log(sum(1)(3));
欢迎分享,转载请注明来源:内存溢出

此题考函数式编程:
const sum = (x, y) => (typeof y === "undefined") ? (y)=> x+y : x+y
console.log(sum(1,3));
console.log(sum(1)(3));
欢迎分享,转载请注明来源:内存溢出
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