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如何实现add(2)(3)输出5

console.log(add(2)(3)) // 5
console.log(add(2)(3)(4)) // 9

如何设计一个 add()()... 函数,后面跟的小括号数目是不定的,使得输出每个小括号里参数之和,求大神告知如何实现。


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提问之前先搜一下吧,这问题在SF这里问了很多遍了:

https://segmentfault.com/q/10...
https://segmentfault.com/a/11...
https://segmentfault.com/a/11...


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