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HTML img scaling

... Only set the width or height, and it will scale the other automatically. And yes you can use a percentage. The first part can be done, but requires JavaScript, so might not work for all users. share | ...
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jQuery Validate - require at least one field in a group to be filled

..." you will see an example. I take it one step further: I declare an array called "rules", then separately, I use them with var validator = $('#formtovalidate').validate(rules); – Nathan Long Sep 28 '09 at 11:42 ...
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jquery find closest previous sibling with class

... Try: $('li.current_sub').prevAll("li.par_cat:first"); Tested it with your markup: $('li.current_sub').prevAll("li.par_cat:first").text("woohoo"); will fill up the closest previous li.par_cat with "woohoo". ...
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How to load images dynamically (or lazily) when users scrolls them into view

...y are not fetched from the server straight away ). What is this technique called, how does it work and in how many browsers does it work. And is there a jQuery plugin that can achieve this behavior with minimum coding. ...
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ANTLR: Is there a simple example?

...r, and evaluator using ANTLR4. You first create a grammar. Below is a small grammar that you can use to evaluate expressions that are built using the 4 basic math operators: +, -, * and /. You can also group expressions using parenthesis. Note that this grammar is just a very basic one: it does ...
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Do you leave parentheses in or out in Ruby? [closed]

... From the Elements of Ruby Style Ruby allows you to leave out parenthesis, in general, resist this temptation. Parenthesis make the code easier to follow. General Ruby style is to use them, except in the following cases: Always leave out empty ...
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How do I remove the space between inline/inline-block elements?

...ttp://jsfiddle.net/thirtydot/dGHFV/1361/ This works in recent versions of all modern browsers. It works in IE8. It does not work in Safari 5, but it does work in Safari 6. Safari 5 is nearly a dead browser (0.33%, August 2015). Most of the possible issues with relative font sizes are not complicat...
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How to find the foreach index?

... This should be useful if you want to use a plain old PHP associative array to store data which is to be exposed via the Iterable interface (where you need to keep track of where you are in a loop). – Peter Dec 15 '11 at 21:33 ...
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Wait for all promises to resolve

...ltiple promise chains of an unknown length. I want some action to run when all the CHAINS have been processed. Is that even possible? Here is an example: ...
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In Vim, how do I apply a macro to a set of lines?

...at performs an operation on a single line. I want to repeat that macro on all of the remaining lines in the file. Is there a quick way to do this? ...