5 ms·

Gist to add CoffeeScript friendly argument order to Underscore.js

33 points by jimtla 14y ago

roryokane 14y ago
For others who were confused like me: the title refers to argument order that is easy to write in CoffeeScript, not the (non-existent) "friendly argument order" feature of CoffeeScript.
- jimtla 14y ago
  Oops that was meant to be (CoffeeScript friendly) argument order, not CoffeeScript (friendly argument order). English needs better operator precedence. Thanks
  - alecperkins 14y ago
    A hyphen would be useful here: “CoffeeScript-friendly argument order”.
  - jQueryIsAwesome 14y ago
    I agree, lets make a pull request to... after a little research looks like there is no language regulator for English (http://en.wikipedia.org/wiki/List_of_language_regulators http://en.wikipedia.org/wiki/List_of_language_regulators) :/
deleted 14y ago
[deleted]
Perceptes 14y ago
You can also call the original method without the ugly leading comma like this: _.throttle( -> console.log("Foo") 500 )
- sic1 14y ago
  Nice, got me thinkin and tried this: _.throttle -> console.log("Foo") , 500 And it works!
  - Perceptes 14y ago
    That's what the author of this Gist was trying to avoid.
- jewel 14y ago
  Is there any reason coffeescript can't be extended to support the same thing without parentheses? That feels fairly natural to me since it's similar to the object literal syntax. Edit: Couldn't find that this has ever been suggested before, so I created a github issue: https://github.com/jashkenas/coffee-script/issues/2307 https://github.com/jashkenas/coffee-script/issues/2307
shaunxcode 14y ago
I dig what you are saying but after some reflection decided I would rather see kv args. Here is a gist to accomplish that: https://gist.github.com/2625081 https://gist.github.com/2625081 (wish there was simple way to introspect a fn and get its arg names, but saying that a lot of underscore functions have dynamic arities so this only makes sense for specific functions anyway) $(window).scroll _.throttleKV func: -> console.log "This print's at most every 500ms" wait: 500 Nice thing about that is you don't have to rememeber arg order (though you do have to remember the kv names). In coffee though you have less commas, feels nearly smalltalkish.
- jimtla 14y ago
  Very cool - I like that alot. There's probably a way to programmatically add that for every underscore function, but there's probably not a _good_ way...
stilist 14y ago
In the past few months I’ve moved to named functions for any timers/event bindings/callbacks longer than a single statement. Keeps things more manageable in general, and as a bonus, sidesteps this issue. Spaghetti’s tasty, but belongs on your plate, not your computer.

33 points by jimtla 14y ago

For others who were confused like me: the title refers to argument order that is easy to write in CoffeeScript, not the (non-existent) "friendly argument order" feature of CoffeeScript.

jimtla 14y ago
Oops that was meant to be (CoffeeScript friendly) argument order, not CoffeeScript (friendly argument order). English needs better operator precedence. Thanks
- alecperkins 14y ago
  A hyphen would be useful here: “CoffeeScript-friendly argument order”.
- jQueryIsAwesome 14y ago
  I agree, lets make a pull request to... after a little research looks like there is no language regulator for English (http://en.wikipedia.org/wiki/List_of_language_regulators http://en.wikipedia.org/wiki/List_of_language_regulators) :/

deleted 14y ago

[deleted]

Perceptes 14y ago

You can also call the original method without the ugly leading comma like this: _.throttle( -> console.log("Foo") 500 )

sic1 14y ago
Nice, got me thinkin and tried this: _.throttle -> console.log("Foo") , 500 And it works!
- Perceptes 14y ago
  That's what the author of this Gist was trying to avoid.
jewel 14y ago
Is there any reason coffeescript can't be extended to support the same thing without parentheses? That feels fairly natural to me since it's similar to the object literal syntax. Edit: Couldn't find that this has ever been suggested before, so I created a github issue: https://github.com/jashkenas/coffee-script/issues/2307 https://github.com/jashkenas/coffee-script/issues/2307

shaunxcode 14y ago

I dig what you are saying but after some reflection decided I would rather see kv args. Here is a gist to accomplish that: https://gist.github.com/2625081 https://gist.github.com/2625081 (wish there was simple way to introspect a fn and get its arg names, but saying that a lot of underscore functions have dynamic arities so this only makes sense for specific functions anyway) $(window).scroll _.throttleKV func: -> console.log "This print's at most every 500ms" wait: 500 Nice thing about that is you don't have to rememeber arg order (though you do have to remember the kv names). In coffee though you have less commas, feels nearly smalltalkish.

jimtla 14y ago
Very cool - I like that alot. There's probably a way to programmatically add that for every underscore function, but there's probably not a _good_ way...

stilist 14y ago

In the past few months I’ve moved to named functions for any timers/event bindings/callbacks longer than a single statement. Keeps things more manageable in general, and as a bonus, sidesteps this issue. Spaghetti’s tasty, but belongs on your plate, not your computer.