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Better way to check variable for null or empty string?
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// Function for basic field validation (present and neither empty nor only white space
function IsNullOrEmptyString($str){
return (!isset($str) || trim($str) === '');
}
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How do I change the text of a span element using JavaScript?
...y, which means that a lot of people have probably taken over this solution and might have introduced unnecessary xss leaks. Could you consider updating your answer to use textContent instead, such that new people will be encouraged to use proper and secure methods?
– Tiddo
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How to include a quote in a raw Python string
...oted strings in your string (an extremely unlikely case), you can't do it, and you'll have to use non-raw strings with escapes.
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git returns http error 407 from proxy after CONNECT
... is something similar to what rohitmohta is proposing ; in regular DOS command prompt (not on git bash) :
first
git config --global http.proxy http://username:password@proxiURL:proxiPort
and in some cases also
git config --global https.proxy http://username:password@proxiURL:proxiPort
then
g...
How to loop over files in directory and change path and add suffix to filename
...t files, or all files in /Data? Here's an answer, assuming /Data/data1.txt and .txt files only:
#!/bin/bash
for filename in /Data/*.txt; do
for ((i=0; i<=3; i++)); do
./MyProgram.exe "$filename" "Logs/$(basename "$filename" .txt)_Log$i.txt"
done
done
Notes:
/Data/*.txt expand...
How to detect Ctrl+V, Ctrl+C using JavaScript?
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Why the keydown and keyup handlers on document? You can test for the Ctrl key in the $(".no-copy-paste").keydown handler. Also, there's no need for the e.keyCode || e.which bit: e.keyCode works in all browsers that e.which works in, so e.whi...
back button callback in navigationController in iOS
I have pushed a view onto the navigation controller and when I press the back button it goes to the previous view automatically. I want to do a few things when back button is pressed before popping the view off the stack. Which is the back button callback function?
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How to select first and last TD in a row?
How can you select the first and the last TD in a row?
5 Answers
5
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Why do people use __(double underscore) so much in C++
I was having a look through some open source C++ code and notice a lot of double under scores where used in the code, mainly at the start of variable names.
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Visual Studio SP1 error: silverlight_sdk.msi is unavailable
...ying to install the SP1 for Visual Studio 2010. I first installed the beta and it worked fine. Then I used the web platform installer to install the SQL CE Compact 4, which I assume installed the full SP1 after (this installation took over 12 hours, so I canceled it). The web platform installer told...