关于javascript:实现一个如-f1f2f3f4x-的-compose

假如有函数

[f1, f2, f3, f4]

f1(f2(f3(f4(x))))

function compose(...funcs) {  if(funcs.length === 0) {    return args => args;  }  return funcs.reduce((acc, current) => {    return (...args) => acc(current(...args));  });}

f4(f3(f2(f1(x))))

function compose(...funcs) {  if(funcs.length === 0) {    return args => args;  }  return funcs.reduce((acc, current) => {    return (...args) => current(acc(...args));  });}

经典题型测试

function add(a, b = 1) {  return a + b;  } function square(a) {  return a*a;} function plusOne(a) {  return a + 1;} function compose(...funcs) {  if(funcs.length === 0) {    return args => args;  }  return funcs.reduce((acc, current) => {    return (...args) => acc(current(...args));  });} var addSquareAndPlusOne = compose(add, square, plusOne); addSquareAndPlusOne(1, 2);