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jQuery: what is the best way to restrict “number”-only input for textboxes? (allow decimal points)

... Update There is a new and very simple solution for this: It allows you to use any kind of input filter on a text <input>, including various numeric filters. This will correctly handle Copy+Paste, Drag+Drop, keyboard shortcuts, contex...
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Why is extending native objects a bad practice?

... get a perfomance hit? Do they fear that somebody does it "the wrong way", and adds enumerable types to Object , practically destroying all loops on any object? ...
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How to check if hex color is “too black”?

...e darkness of a color chosen by a color picker to see if it's "too black", and if so, set it to white. I thought I could use the first characters of the hex value to pull this off. It's working, but it's switching some legitimately "light" colors too. ...
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JPA and Hibernate - Criteria vs. JPQL or HQL

What are the pros and cons of using Criteria or HQL ? The Criteria API is a nice object-oriented way to express queries in Hibernate, but sometimes Criteria Queries are more difficult to understand/build than HQL. ...
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What is the difference between ${var}, “$var”, and “${var}” in the Bash shell?

... Braces ($var vs. ${var}) In most cases, $var and ${var} are the same: var=foo echo $var # foo echo ${var} # foo The braces are only needed to resolve ambiguity in expressions: var=foo echo $varbar # Prints nothing because there is no variable 'varbar' echo ${var}bar...
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How to link Docker services across hosts?

...allows servers from multiple containers to connect to each other via links and service discovery . However, from what I can see this service discovery is host-local. I would like to implement a service that uses other services hosted on a different machine. ...
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JUnit: how to avoid “no runnable methods” in test utils classes

... I don't think it would help, because he moved to JUnit 4.4 and that should not matter. – guerda Mar 23 '09 at 7:46 2 ...
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What, why or when it is better to choose cshtml vs aspx?

I would like to know what, why or when it is better to choose cshtml and what, why or when it is better to choose aspx technologies? What are these two technologies intended for? ...
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When should I use double or single quotes in JavaScript?

...r use of single vs. double in different libraries is programmer preference and/or API consistency. Other than being consistent, use whichever best suits the string. Using the other type of quote as a literal: alert('Say "Hello"'); alert("Say 'Hello'"); This can get complicated: alert("It's \"game\"...
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Can PHP cURL retrieve response headers AND body in a single request?

Is there any way to get both headers and body for a cURL request using PHP? I found that this option: 13 Answers ...