colezhang

javascript 问题

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  •   colezhang · May 3, 2016 · 3917 views
    This topic created in 3837 days ago, the information mentioned may be changed or developed.

    function testPlainPush(): ThunkAction { return () => Parse.Cloud.run('test_push'); }

    请问这个冒号啥意思

    8 replies  •  2016-05-03 17:26:00 +08:00
    kindjeff
    kindjeff
    May 3, 2016
    1
    console 里试了一下是报错的
    colezhang
    colezhang
    OP
    May 3, 2016
    2
    @kindjeff ES6 写法应该 用 babel 可以转 当不明白那么写啥意思
    whahugao
    whahugao
    May 3, 2016
    3
    这是 typescript 吗? 声明 testPlayPush 是 ThunkAction 类型的
    无责任瞎猜的
    kindjeff
    kindjeff
    May 3, 2016
    4
    @colezhang 大概是返回值类型吧。不然还能是继承吗~~
    bzw875
    bzw875
    May 3, 2016
    5
    node v5.11.0 执行也报错,不知道是啥
    learnshare
    learnshare
    May 3, 2016
    6
    看起来是 TypeScript ,***(): ThunkAction 是声明返回值类型吧
    manfay
    manfay
    May 3, 2016 via iPad❤️1
    7
    Flow | A static type checker for JavaScript
    http://flowtype.org
    colezhang
    colezhang
    OP
    May 3, 2016
    8
    @manfay thinks
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