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Should I index a bit field in SQL Server?
...with low cardinality (a low number of distinct values) is not really worth doing. I admit I don't know enough about how indexes work to understand why that is.
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Jump to function definition in vim
... php is C-like enough that "Exuberant ctags" should work with it. Don't know if it has a python mode.
– Paul Tomblin
Mar 11 '09 at 18:38
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Using jQuery To Get Size of Viewport
How do I use jQuery to determine the size of the browser viewport, and to redetect this if the page is resized? I need to make an IFRAME size into this space (coming in a little on each margin).
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SQLite Reset Primary Key Field
...UTOINCREMENT
key generation algorithm. Make sure
you know what you are doing before you
undertake such changes.
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What does “=>” mean in PHP?
What does the => operator mean in the following code?
6 Answers
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Can I make a not submit a form?
...ton elements is "submit". Set it to type="button" to produce a button that doesn't submit the form.
<button type="button">Submit</button>
In the words of the HTML Standard: "Does nothing."
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Rename a dictionary key
...; and without iterating through dict key/value?
In case of OrderedDict, do the same, while keeping that key's position.
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'dragleave' of parent element fires when dragging over children elements
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If you don't need to bind events to the child elements, you can always use the pointer-events property.
.child-elements {
pointer-events: none;
}
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Checking if a field contains a string
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You can do it with the following code.
db.users.findOne({"username" : {$regex : ".*son.*"}});
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In java how to get substring from a string till a character c?
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The accepted answer is correct but it doesn't tell you how to use it. This is how you use indexOf and substring functions together.
String filename = "abc.def.ghi"; // full file name
int iend = filename.indexOf("."); //this finds the first occurrence of "." ...