yuann72
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JS 怎么把函数的参数(未知个数)传递给另一个函数?

  •  
  •   yuann72 · Aug 16, 2016 · 5261 views
    This topic created in 3730 days ago, the information mentioned may be changed or developed.
    function A(/*未知个数的参数*/){
    console.log(/*传递给另一个函数*/);
    }
    A(1,2,3,4);
    19 replies  •  2016-08-16 13:27:00 +08:00
    BuilderQiu
    BuilderQiu
    Aug 16, 2016
    1
    了解下: arguments
    66beta
    66beta
    Aug 16, 2016
    2
    function aaa() {return bbb(arguments)}
    function bbb(){console.log(arguments[0])}

    aaa(1,2,3,4)
    shyling
    shyling
    Aug 16, 2016
    3
    function got(...args){console.log(args)}
    got(1,2,3,4)
    tomato3
    tomato3
    Aug 16, 2016
    4
    ```
    function A () {
    console.log(arguments)
    }
    A(123,134,45)

    ```
    morethansean
    morethansean
    Aug 16, 2016❤️2
    5
    function A() {
    B.apply(this, arguments);
    }

    function B() {
    /** code here */
    }

    A(1,2,3,4,5);
    yuann72
    yuann72
    OP
    Aug 16, 2016
    6
    @tomato3
    @66beta
    这样写 输出的是 arguments 这个对象 // [1, 2, 3 , 4]
    跟直接运行 console.log(1,2,3,4) 输出的不一样 // 1 2 3 4
    yuann72
    yuann72
    OP
    Aug 16, 2016
    7
    @morethansean 没看懂怎么用....
    ETiV
    ETiV
    Aug 16, 2016 via iPhone
    8
    查文档: arguments 、 apply

    扩展: call 、 bind
    Seita
    Seita
    Aug 16, 2016
    9
    你需要了解一下 Function.apply
    plantain
    plantain
    Aug 16, 2016 via Android❤️1
    10
    function a(...p){b(...p)};
    a(1,2,3)
    airyland
    airyland
    Aug 16, 2016 via iPhone
    11
    楼上正解,但是要 babel 编译
    dosin
    dosin
    Aug 16, 2016 via iPhone
    12
    5 楼说的优雅
    yangg
    yangg
    Aug 16, 2016
    13
    var log = console.log.bind(console);
    66beta
    66beta
    Aug 16, 2016
    14
    @yuann72 你到底要做什么功能呢?
    console.log(1,2,3,4) 是打印四个参数
    console.log([1,2,3,4])
    yuann72
    yuann72
    OP
    Aug 16, 2016
    15
    @66beta 我本来要的功能是把 console.log 改名为 其他
    就是这个 我从其他地方得到的答案 :var log = console.log.bind(console)
    不过我一楼描述错了,不过你们给的回复 我也可以用到其他地方
    mdluo
    mdluo
    Aug 16, 2016
    16
    典型的 X-Y Problem
    finian
    finian
    Aug 16, 2016
    17
    function A() { console.log.apply(console, [].slice.call(arguments)) }
    ljbha007
    ljbha007
    Aug 16, 2016
    18
    5 楼正解
    BOYPT
    BOYPT
    Aug 16, 2016
    19
    ES6 的话有新语法:
    function fun1(...theArgs) {
    console.log(theArgs);
    }
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