You cannot point to file containing the map. You can however host your map locally and then point to localhost address. In the javascript source file there also must not be //# sourceMappingURL=… comment presented since than Chrome DevTools won’t load the sourcemap if it is different than specified in the URL.
Update: strict mode is now supported in the compiler. Just use –language_in=ECMASCRIPT5_STRICT. References: http://code.google.com/p/closure-compiler/issues/detail?id=69 http://code.google.com/p/closure-compiler/source/detail?r=873 http://code.google.com/p/closure-compiler/source/detail?r=1114
Google Closure Compiler is jQuery or any other library agnostic. It has two types of optimizations – Simple Advanced I tried applying advanced optimizations, but it severely broke my application. If it does the same, you could either try to fix your application, or use simple optimization. There was a 32% drop in size with … Read more
John Resig reported a bug on recursive functions when he attempted to compile a nightly of jQuery 1.4, so there are a few kinks to be worked out. I wouldn’t use a jQuery compiled with Closure Compiler without making sure it passes the jQuery testbed. http://code.google.com/p/closure-compiler/issues/detail?id=1&can=1#c2
here’s the (ultimate) answer for closure compiler : /** @const */ var LOG = false; … LOG && log(‘hello world !’); // compiler will remove this line … this will even work with SIMPLE_OPTIMIZATIONS and no –define= is necessary !
CoffeeScript Input: ### define function variable before block to avoid code being appended to closing part of JSDoc comment ### cube = null ###* * Function to calculate cube of input * @param {number} Number to operate on * @return {number} Cube of input ### cube = (x) -> x*x*x JavaScript Output from windows cmd … Read more
“Whichever you find best for you” I think is the general answer at the moment – YUI has been available longer so undoubtedly will be the one which currently has the consensus as being the best tool. Whereas Closure is new to us – so there isn’t the wealth of experience with Closure as there … Read more
Minification can improve performance. Node’s V8 optimizing compiler inlines functions according to some heuristics. Minification influences these heuristics. This can cause inlining of previously not inlined functions. Since inlined functions generally perform faster, this can lead to performance improvements. ###Node 9.0+ / V8 6.2+ (Turbofan) – minor performance improvements If the function’s unoptimized bytecode size … Read more
There is one significant difference connected also to scope. The following code: (function(msg) { console.log(msg); })(“Hello World!”); is in some circumstances cleaner in terms of namespace pollution than this: var msg = “Hello World!”; console.log(msg); because the second code leaves variable after it is no longer needed, but may interfere with other parts of the … Read more
From MDN: The void operator evaluates the given expression and then returns undefined. This operator allows inserting expressions that produce side effects into places where an expression that evaluates to undefined is desired. The void operator is often used merely to obtain the undefined primitive value, usually using “void(0)” (which is equivalent to “void 0“). … Read more