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定义函数sum, 参数params 个数不定,

  • 不使用 es6
  • 不使用 eval
  • 不使用call,apply,bind

有没有其他办法实现

const params = ["aa", "ff","22",2,4,...]
const sum = new Function('a', 'b',...params 'return a + b');

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我理解是说在 new Function 的时候不定参数个数?
那直接用 arguments 应该可以吧

const sum = new Function('var rtn = 0;var i = 0;while (i < arguments.length) {rtn += arguments[i];i++;}return rtn')

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