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How do I test if a variable is a number in Bash?
...rne shell, and has built-in support for glob-style wildcards. If you come from another programming language, it looks eerie, but it's much more elegant than coping with the brittleness of various quoting issues and endless backwards/sideways compatibility problems with if test ...
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How to wait until an element exists?
...ement is inserted or
* string "remove" to remove the listener from the given selector
* @param {bool} shouldRunHandlerOnce
* Optional: if true, handler is unbound after its first invocation
* @example jQuery(selector).waitUntilExists(function);
*/
$.fn.waitUntilExists =...
How do I determine if my python shell is executing in 32bit or 64bit?
I need a way to tell what mode the shell is in from within the shell.
18 Answers
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Why is the default value of the string type null instead of an empty string?
...ccasion where this would be a problem is when the string is a return value from some function. Since string is a reference type and can technically have a value as null and empty both, therefore the function can also technically return a null or empty (there is nothing to stop it from doing so). Now...
Difference between single and double quotes in Bash
...mple examples.
Single quotes can be used around text to prevent the shell from interpreting any special characters. Dollar signs, spaces, ampersands, asterisks and other special characters are all ignored when enclosed within single quotes.
$ echo 'All sorts of things are ignored in single quotes...
Input type=password, don't let browser remember the password
...iness analyst might decide he wants a password field and remove the choice from the developer.
– Sprague
Nov 16 '15 at 12:32
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How to get and set the current web page scroll position?
... thanks, I found this: articles.sitepoint.com/article/javascript-from-scratch/6 and modified the getScrollingPosition() to store the values in hidden variables. Then in the html of the refreshed page I use <body onLoad="window.scrollTo(x,y), where x and y are those from the hidden value...
How to execute a stored procedure within C# program
I want to execute this stored procedure from a C# program.
13 Answers
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Why doesn't list have safe “get” method like dictionary?
...tem are O(1). It won't be quite as fast in raw terms as checking len, but from a complexity point of view they're all O(1). The right answer is the typical usage / semantics one...
– Mark Longair
Feb 26 '11 at 8:15
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How to colorize diff on the command line?
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Man pages for diff suggest no solution for colorization from within itself. Please consider using colordiff. It's a wrapper around diff that produces the same output as diff, except that it augments the output using colored syntax highlighting to increase readability:
diff old ne...