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How to install psycopg2 with “pip” on Python?
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Worked on AWS EC2, with RHEL-based 64bit Amazon Linux/2.5.1
– Ben Wheeler
Sep 8 '17 at 19:33
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How to search a Git repository by commit message?
...re is :/ which is the dedicated notation to specify a commit (or revision) based on the commit message, just prefix the search string with :/, e.g.:
git show :/keyword(s)
Here <keywords> can be a single word, or a complex regex pattern consisting of whitespaces, so please make sure to quote/e...
Does anyone have benchmarks (code & results) comparing performance of Android apps written in Xamari
...k, with the C# implementation of Android well and truly trouncing the Java-based Dalvik.
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How to validate an Email in PHP?
...1\\x23-\\x5B\\x5D-\\x7F]|(?:\\x5C[\\x00-\\x7F]))*\\x22)))*@(?:(?:(?!.*[^.]{64,})(?:(?:(?:xn--)?[a-z0-9]+(?:-+[a-z0-9]+)*\\.){1,126}){1,}(?:(?:[a-z][a-z0-9]*)|(?:(?:xn--)[a-z0-9]+))(?:-+[a-z0-9]+)*)|(?:\\[(?:(?:IPv6:(?:(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){7})|(?:(?!(?:.*[a-f0-9][:\\]]){7,})(?:[a-f0-9]{...
How can I find unused images and CSS styles in a website? [closed]
... unused CSS across many pages on a web
site.
The tool is javascript-based and runs from the browser.
Helium accepts a list of URLs for different sections of a site then
loads and parses each page to build up a list of all stylesheets. It
then visits each page in the URL list and chec...
Passing parameters to addTarget:action:forControlEvents
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I made a solution based in part by the information above. I just set the titlelabel.text to the string I want to pass, and set the titlelabel.hidden = YES
Like this :
UIButton *imageclick = [[UIButton buttonWithType:UIButtonTypeCustom] retai...
How to template If-Else structures in data-bound views?
I constantly find myself using this idiom in KO-based HTML templates:
4 Answers
4
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Check image width and height before upload with Javascript
.../Initiate the JavaScript Image object.
var image = new Image();
//Set the Base64 string return from FileReader as source.
image.src = e.target.result;
//Validate the File Height and Width.
image.onload = function () {
var height = this.height;
var width = this.width;
if (height > 100 || w...
How to debug heap corruption errors?
...is function call in my callstack dump (after memory corruption crash) : wow64!Wow64NotifyDebugger , what I can I do ? I still don't know what is going wrong in my application
– Guillaume07
Dec 23 '11 at 10:56
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Checking if sys.argv[x] is defined
...h = sys.argv[1]
else:
blah = 'blah'
Some people prefer the exception-based approach you've suggested (eg, try: blah = sys.argv[1]; except IndexError: blah = 'blah'), but I don't like it as much because it doesn't “scale” nearly as nicely (eg, when you want to accept two or three arguments)...