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Comment by meistro | Hacker News Reader

> var one = "foo"

  , two = "bar"

  , three = "baz"

Agree with the author that this is easier to change, and in JS it will keep you from accidentally leaving a trailing comma. That being said, I find it to be very unreadable(which is where most your time will be spent) and most text editors/IDE's make it a burden to work with.

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While I agree with making code editable in single lines as much as possible, I think this is a particularly bad example. I do prefer the comma first style for arrays and objects, but not for variable declarations. I used to use this exact style a couple years ago, but now I prefer to explicitly declare every variable with `var` to prevent any possible, syntactically correct, error that would result in a global variable.

It's even easier to create three separate var statements and let a JavaScript compressor handle it:

    var one = "foo";
    var two = "bar";
    var three = "baz";

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