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How to make HTML input tag only accept numerical values?
I need to make sure that a certain <input> field only takes numbers as value.
The input is not part of a form. Hence it doesn't get submitted, so validating during submission is not an option. I want the user to be unable to type in any characters other than numbers.
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How to keep the spaces at the end and/or at the beginning of a String?
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How do I compare two hashes?
I am trying to compare two Ruby Hashes using the following code:
14 Answers
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Creating your own header file in C
Can anyone explain how to create a header file in C with a simple example from beginning to end.
4 Answers
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How do I get the first element from an IEnumerable in .net?
...ten want to grab the first element of an IEnumerable<T> in .net, and I haven't found a nice way to do it. The best I've come up with is:
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How to join multiple lines of file names into one with custom delimiter?
I would like to join the result of ls -1 into one line and delimit it with whatever i want.
22 Answers
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curl : (1) Protocol https not supported or disabled in libcurl
...to install the Rails environments on Ubuntu 11.04. When I launch the command rvm install 1.9.2 --with-openssl-dir=/usr/local the following error is received:
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Member '' cannot be accessed with an instance reference
I am getting into C# and I am having this issue:
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CSS: center element within a element
...eft: 50%; . However, this centers the element with respect to the whole window.
20 Answers
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With MySQL, how can I generate a column containing the record index in a table?
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