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Why would a JavaScript variable start with a dollar sign? [duplicate]
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As others have mentioned the dollar sign is intended to be used by mechanically generated code. However, that convention has been broken by some wildly popular JavaScript libraries. JQuery, Prototype and MS AJAX (AKA Atlas) all use this charac...
Using str_replace so that it only acts on the first match?
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Can be done with preg_replace:
function str_replace_first($from, $to, $content)
{
$from = '/'.preg_quote($from, '/').'/';
return preg_replace($from, $to, $content, 1);
}
echo str_replace_first('abc', '123', 'abcdef abcdef ...
Show DialogFragment with animation growing from a point
...want:
public class CustomDialogFragment extends DialogFragment implements OnEditorActionListener
{
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
{
return super.onCreateView(inflater, container, savedInstanceS...
How to escape braces (curly brackets) in a format string in .NET
...fying the FormatProvider twice, with the risk that you'd specify different ones, or miss one.
– ClickRick
Apr 20 '15 at 9:02
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mongo group query how to keep fields
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Just a quick update if one faces the same issue with documents with numerous fields.
One can use the power of combining the $replaceRoot pipeline stage and the $mergeObjects pipeline operator.
db.users.aggregate([
{
$group: {
_id: '$n...
Keep-alive header clarification
I was asked to build a site , and one of the co-developer told me That I would need to include the keep-alive header.
1 An...
brew install mysql on macOS
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I think one can end up in this position with older versions of mysql already installed. I had the same problem and none of the above solutions worked for me. I fixed it thus:
Used brew's remove & cleanup commands, unloaded the l...
Row count with PDO
... this would mean doing an extra database query. I assume he has already done a select query and now wants to know how many rows were returned.
– nickf
May 19 '09 at 15:17
1
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What HTTP status response code should I use if the request is missing a required parameter?
...tains well-formed (i.e., syntactically correct), but
semantically erroneous, XML instructions.
They state that malformed xml is an example of bad syntax (calling for a 400). A malformed query string seems analogous to this, so 400 doesn't seem appropriate for a well-formed query-string which...
Disabled input text color
...y in Firefox and WebKit-based browsers (I checked in Safari, Chrome and iPhone).
10 Answers
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