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How to get object length [duplicate]
...to make sure that you're only counting properties from the object literal, and not properties it "inherits" from its prototype.
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Show filename and line number in grep output
... to search my rails directory using grep. I am looking for a specific word and I want to grep to print out the file name and line number.
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What is the difference between SqlCommand.CommandTimeout and SqlConnection.ConnectionTimeout?
Is there any difference between SqlCommand.CommandTimeout and SqlConnection.ConnectionTimeout in .NET?
6 Answers
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Remove non-numeric characters (except periods and commas) from a string
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You could use preg_replace to swap out all non-numeric characters and the comma and period/full stop as follows:
$testString = '12.322,11T';
echo preg_replace('/[^0-9,.]+/', '', $testString);
The pattern can also be expressed as /[^\d,.]+/
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Should I use a data.frame or a matrix?
When should one use a data.frame , and when is it better to use a matrix ?
6 Answers
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List of encodings that Node.js supports
...ms compiling iconv I recommend iconv-lite. It does not require compilation and according to the dev is faster than iconv and it is used by popular tools like Grunt, Nodemailer, Yeoman, ...
– Telémako
Jan 13 '14 at 11:32
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How can I delete a query string parameter in JavaScript?
... better way to delete a parameter from a query string in a URL string in standard JavaScript other than by using a regular expression?
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JavaScript open in a new window, not tab
...,location=0,menubar=0'. You can verify it by omitting this third parameter and leaving '_blank' there as the 2nd parameter.
– user1451111
Aug 25 '17 at 4:49
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Updating packages in Emacs
... type package-list-packages, which will take you to the *Packages* buffer (and also update the list of packages), and then type U x.
package-refresh-contents unconditionally tries to download a package list from all repos you've added to package-archives; package-archive-contents is non nil if yo...
Displaying the build date
... have an app displaying the build number in its title window. That's well and good except it means nothing to most of the users, who want to know if they have the latest build - they tend to refer to it as "last Thursday's" rather than build 1.0.8.4321.
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