let fn = (a, b, c) => { console.log(a, b, c)}fn1(0, 0, 0) // output: 0 0 0想要 fn 每次调用的时候第二个参数总是加 2即fn(0, 0, 0) // output: 0 2 0fn(1, 1, 1) // output: 1 3 1目前只找到一种很丑的写法去 hijack:fn = (_ => { const innerFn = fn const newFn = (a, b, c) => { innerFn(a, b + 2, c) } Object.assign(newFn, innerFn) return newFn})()有没有更好一点的包装方法?
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