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What underlies this JavaScript idiom: var self = this?
...his even as the context is changing. It's a technique often used in event handlers (especially in closures).
Edit: Note that using self is now discouraged as window.self exists and has the potential to cause errors if you are not careful.
What you call the variable doesn't particularly matter. va...
How to use a different version of python during NPM install?
I have terminal access to a VPS running centos 5.9 and default python 2.4.3 installed. I also installed python 2.7.3 via these commands: (I used make altinstall instead of make install )
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In Python, how does one catch warnings as if they were exceptions?
... warnings. I want to be able to use the try except syntax to properly handle these warnings. Is there a way to do this?
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Apache VirtualHost 403 Forbidden
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I've added this directive to /etc/apache2/apache2.conf and it helped, thank you!
– DmitMedv
Sep 26 '15 at 20:58
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C# code to validate email address
...$.xyz
For most use cases, a false "invalid" is much worse for your users and future proofing than a false "valid". Here's an article that used to be the accepted answer to this question (that answer has since been deleted). It has a lot more detail and some other ideas of how to solve the problem....
How set the default repository
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Thanks. But may be there is any way to set it from command prompt?
– demas
Sep 27 '10 at 13:33
34
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How do I access call log for android?
... of Jellybean (4.1) you need the following permission:
<uses-permission android:name="android.permission.READ_CALL_LOG" />
Code:
Uri allCalls = Uri.parse("content://call_log/calls");
Cursor c = managedQuery(allCalls, null, null, null, null);
String num= c.getString(c.getColumnIndex(CallLo...
PHP - iterate on string characters
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hah wow. yep thats it. and of course implode can do the other direction. I'll accept this soon unless someone can show a way to do the iteration right on the sting
– jon_darkstar
Jan 5 '11 at 5:29
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Deleting all files in a directory with Python
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Via os.listdir and os.remove:
import os
filelist = [ f for f in os.listdir(mydir) if f.endswith(".bak") ]
for f in filelist:
os.remove(os.path.join(mydir, f))
Or via glob.glob:
import glob, os, os.path
filelist = glob.glob(os.path...
What is the JavaScript version of sleep()?
...esolve or reject).
Compatibility
promises are supported in Node v0.12+ and widely supported in browsers, except IE
async/await landed in V8 and has been enabled by default since Chrome 55 (released in Dec 2016)
it landed in Node 7 in October 2016
and also landed in Firefox Nightly in November ...