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How to make a div with no content have a width?
...to add a width to a div , but I seem to be running into a problem because it has no content.
11 Answers
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How to check 'undefined' value in jQuery
...veloped specifically to simplify and to unify certain JavaScript functionality.
However if you need to check a variable against undefined value, there is no need to invent any special method, since JavaScript has a typeof operator, which is simple, fast and cross-platform:
if (typeof value === "un...
html select only one checkbox in a group
... // the name of the box is retrieved using the .attr() method
// as it is assumed and expected to be immutable
var group = "input:checkbox[name='" + $box.attr("name") + "']";
// the checked state of the group/box on the other hand will change
// and the current value is retriev...
How to request a random row in SQL?
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See this post: SQL to Select a random row from a database table. It goes through methods for doing this in MySQL, PostgreSQL, Microsoft SQL Server, IBM DB2 and Oracle (the following is copied from that link):
Select a random row with MySQL:
SELECT column FROM table
ORDER BY RAND()
LIMIT ...
Can I convert a C# string value to an escaped string literal
In C#, can I convert a string value to a string literal, the way I would see it in code? I would like to replace tabs, newlines, etc. with their escape sequences.
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How can I disable a button in a jQuery dialog from a function?
..." button to only be enabled once all the fields have content in them, else it will remain disabled.
33 Answers
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What does Html.HiddenFor do?
... I have read the documentation on Html.HiddenFor, I've not grasped what is it used for...
4 Answers
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Xcode 4 and Core Data: How to enable SQL Debugging
...ogging for iOS Core Data development. The given example is for Xcode 3 and it's just not clear to me how to enable this in Xcode 4.
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Understanding exactly when a data.table is a reference to (vs a copy of) another data.table
I'm having a little trouble understanding the pass-by-reference properties of data.table . Some operations seem to 'break' the reference, and I'd like to understand exactly what's happening.
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How do I rename a repository on GitHub?
I wanted to rename one of my repositories on GitHub, but I got scared when a big red warning said:
12 Answers
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