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sebmck's profile
Sebastian
Sebastian
Sebastian
Verified account
@sebmck

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SebastianVerified account

@sebmck

JavaScript boy and “lovely thoughtleader” ⌨️ he/him ♂️

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Joined April 2011

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    1. Benjamin De Cock‏ @bdc 29 May 2015
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      ES6 WTF of the day: ((foo="bar") => {}).length // => 0

      1 reply 1 retweet 3 likes
    2. Alex LaFroscia‏ @alexlafroscia 29 May 2015
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      Replying to @bdc

      @bdc hmm. Shouldn’t it be 1? Do you know why it isn’t?

      1 reply 0 retweets 0 likes
    3. Benjamin De Cock‏ @bdc 29 May 2015
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      Replying to @alexlafroscia

      @AlexLaFroscia As soon as you have one argument with a default value, the function arity is 0. Worst thing ever :/

      1 reply 0 retweets 0 likes
    4. Alex LaFroscia‏ @alexlafroscia 30 May 2015
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      Replying to @bdc

      @bdc a function with two params, where one has a default value, still has a "length" of 0? Is that in "real' ES6 or Babel?

      1 reply 0 retweets 0 likes
    5. Benjamin De Cock‏ @bdc 30 May 2015
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      Replying to @alexlafroscia

      @AlexLaFroscia Yup, that’s what happens in real :(

      1 reply 0 retweets 0 likes
    6. Alex LaFroscia‏ @alexlafroscia 31 May 2015
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      Replying to @bdc

      @bdc weird. I tested it in Babel and it’s length is 1

      1 reply 0 retweets 0 likes
    7. Benjamin De Cock‏ @bdc 31 May 2015
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      Replying to @alexlafroscia

      @AlexLaFroscia That’s a bug afaict. +@babeljs

      1 reply 0 retweets 0 likes
    8. Sebastian‏Verified account @sebmck 31 May 2015
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      Replying to @bdc

      @bdc Nope? Works as expected. http://babeljs.io/repl/#?experimental=false&evaluate=true&loose=false&spec=false&code=console.log(((foo%3D%22bar%22)%20%3D%3E%20%7B%7D).length)%3B&playground=false … @alexlafroscia

      1 reply 0 retweets 0 likes
    9. Alex LaFroscia‏ @alexlafroscia 31 May 2015
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      Replying to @sebmck

      @sebmck @bdc try two arguments, where only one has a default value. The length will be 1

      1 reply 0 retweets 0 likes
      Sebastian‏Verified account @sebmck 31 May 2015
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      Replying to @alexlafroscia

      @alexlafroscia Well yeah. The arity of functions is equal to that of the last non-default/rest parameter. @bdc

      7:39 AM - 31 May 2015
      1 reply 0 retweets 0 likes
        1. New conversation
        1. Alex LaFroscia‏ @alexlafroscia 31 May 2015
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          Replying to @sebmck

          @sebmck @bdc right, that’s what we were discussing. Ben said that in ES6 the arity of a function with a default param should ALWAYS be 0

          1 reply 0 retweets 0 likes
        2. Sebastian‏Verified account @sebmck 31 May 2015
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          Replying to @alexlafroscia

          @alexlafroscia Ah right. I was just responding to the "That's a bug afaict". @bdc

          0 replies 0 retweets 0 likes
          3. End of conversation

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