Comments on: Thoughts on JavaScript compilers http://www.thheuer.com/2010/07/thoughts-on-javascript-compilers/ Dance of the geek - New Zealand - Germany - DEutschland Tue, 13 Dec 2011 10:05:33 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Tim http://www.thheuer.com/2010/07/thoughts-on-javascript-compilers/#comment-6 Tim Fri, 06 Aug 2010 06:57:50 +0000 http://www.ihostnz.com/blog/?p=13#comment-6 Just had a look again at a particular compiler for OpenLayers. In this case it is very useful because you can declare the classes you need from OpenLayers and it compiles a minified version of it. Compile might be the wrong word here as it is merely minified or built with the help of a python script. You have to declare your classes in a separate file. It would be nice to be able to give it simply another JavaScript file which it examines for classes used, then one woudln't have to do the analysis any more. Just had a look again at a particular compiler for OpenLayers. In this case it is very useful because you can declare the classes you need from OpenLayers and it compiles a minified version of it. Compile might be the wrong word here as it is merely minified or built with the help of a python script. You have to declare your classes in a separate file. It would be nice to be able to give it simply another JavaScript file which it examines for classes used, then one woudln’t have to do the analysis any more.

]]> By: Tim http://www.thheuer.com/2010/07/thoughts-on-javascript-compilers/#comment-4 Tim Sun, 25 Jul 2010 20:50:42 +0000 http://www.ihostnz.com/blog/?p=13#comment-4 By JavaScript compiler I meant something like this: http://pyjs.org/ . And yes, you have a point. Haven't thought about this: "Remember that not every browser implements Javascript the same. HTML5 Javascript is different to HTML4+Google Gears Javascript, for example. Generating Javascript at server request time allows for a more efficient script to be sent to the server, and you wouldn’t have to maintain multiple versions for each platform.". I assume you meant client and not server here. By JavaScript compiler I meant something like this: http://pyjs.org/ .

And yes, you have a point. Haven’t thought about this: “Remember that not every browser implements Javascript the same. HTML5 Javascript is different to HTML4+Google Gears Javascript, for example. Generating Javascript at server request time allows for a more efficient script to be sent to the server, and you wouldn’t have to maintain multiple versions for each platform.”. I assume you meant client and not server here.

]]> By: Jevon http://www.thheuer.com/2010/07/thoughts-on-javascript-compilers/#comment-3 Jevon Sun, 25 Jul 2010 12:47:22 +0000 http://www.ihostnz.com/blog/?p=13#comment-3 What do you mean by "Javascript compiler"? It seems you are mixing a number of terms together. There are Javascript recompilers, which remove unused methods and variables; Javascript reformatters, which remove comments and whitespace; Javascript generators, which take some source (of any language) and generates Javascript; and Javascript compilers, which are compilers written in Javascript (emulators, for example). Remember that not every browser implements Javascript the same. HTML5 Javascript is different to HTML4+Google Gears Javascript, for example. Generating Javascript at server request time allows for a more efficient script to be sent to the server, and you wouldn't have to maintain multiple versions for each platform. Generating Javascript isn't useful for all situations, of course. But it's not useless for all situations, either. What do you mean by “Javascript compiler”? It seems you are mixing a number of terms together. There are Javascript recompilers, which remove unused methods and variables; Javascript reformatters, which remove comments and whitespace; Javascript generators, which take some source (of any language) and generates Javascript; and Javascript compilers, which are compilers written in Javascript (emulators, for example).

Remember that not every browser implements Javascript the same. HTML5 Javascript is different to HTML4+Google Gears Javascript, for example. Generating Javascript at server request time allows for a more efficient script to be sent to the server, and you wouldn’t have to maintain multiple versions for each platform.

Generating Javascript isn’t useful for all situations, of course. But it’s not useless for all situations, either.

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