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How do I prevent commands from showing up in Bash history?
...hell (log in as different user and use su/sudo, creating a background job, etc.)
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Pure JavaScript: a function like jQuery's isNumeric() [duplicate]
...rseInt can result in unwanted false positives like "123abc", "2e1", "0x2", etc.. (even jQuery.isNumeric will parse true). I would use something like this function isNumeric(str) { return /^\d*\.{0,1}\d*$/.test(str); }
– ebob
May 1 '17 at 19:19
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Match all elements having class name starting with a specific string [duplicate]
...e, two and three.
.myclass { color: #f00; }
.two { font-weight: bold; }
etc.
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How Do I Make Glyphicons Bigger? (Change Size?)
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I've used bootstrap header classes ("h1", "h2", etc.) for this. This way you get all the style benefits without using the actual tags. Here is an example:
<div class="h3"><span class="glyphicon glyphicon-tags" aria-hidden="true"></span></div>
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MySQL select where column is not empty
... very difficult to debug :(
If you're using strings (char, varchar, text, etc.), then this will be perfectly be fine, just be careful with numerics.
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How do you reindex an array in PHP?
...aring data for whatever view renderer it may utilize (php, json, xml, rss, etc.)
– Tres
Apr 13 '11 at 23:46
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How do you tell if a string contains another string in POSIX sh?
...eter expansion, so it works in Bash, Dash, KornShell (ksh), Z shell (zsh), etc.
test "${string#*$word}" != "$string" && echo "$word found in $string"
A functionalized version with some examples:
# contains(string, substring)
#
# Returns 0 if the specified string contains the specified su...
How can I comment a single line in XML?
...y C#. So, be sure to first test that your tools, IDE, libraries, language, etc. accept it before using it.
If you care about SGML compatibility, simply use this instead:
<!-- -
<XmlTag variable="0" />
<!- -->
Add '->' to the top comment and a '-' to the bottom comment. The down...
Validate phone number with JavaScript
...test(value). Everything that's not a digit, including whitespaces, dashes, etc...
– Gus
Jul 4 '19 at 1:59
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Resizing an Image without losing any quality [closed]
...ters you can use which give different results - zero-order hold, low-pass, etc.
– Adam Rosenfield
Sep 17 '08 at 21:21
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