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Preview an image before it is uploaded
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Please take a look at the sample code below:
function readURL(input) {
if (input.files && input.files[0]) {
var reader = new FileReader();
reader.onload = function(e) {
$('#blah').attr('src', e.t...
Python import csv to list
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Maciej GolMaciej Gol
12.9k44 gold badges2929 silver badges4545 bronze badges
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Shortcuts in Objective-C to concatenate NSStrings
...ppendingString: ) string concatenation in Objective-C, or shortcuts for working with NSString in general?
29 Answers
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How to debug in Django, the good way? [closed]
...ing to code in Python and later Django . The first times it was hard looking at tracebacks and actually figure out what I did wrong and where the syntax error was. Some time has passed now and some way along the way, I guess I got a routine in debugging my Django code. As this was done early in m...
Can I use if (pointer) instead of if (pointer != NULL)?
Is it safe to check a pointer to not being NULL by writing simply if(pointer) or do I have to use if(pointer != NULL) ?
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How to import a module given its name as string?
I'm writing a Python application that takes as a command as an argument, for example:
11 Answers
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Comment Inheritance for C# (actually any language)
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James CurranJames Curran
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How do I clone a range of array elements to a new array?
I have an array X of 10 elements. I would like to create a new array containing all the elements from X that begin at index 3 and ends in index 7. Sure I can easily write a loop that will do it for me but I would like to keep my code as clean as possible. Is there a method in C# that can do it for m...
Height equal to dynamic width (CSS fluid layout) [duplicate]
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var cw = $('.child').width();
$('.child').css({'height':cw+'px'});
Check working example at http://jsfiddle.net/n6DAu/1/
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What is the fastest way to check if a class has a function defined?
...pace search algorithm, and I have a generic class which can be used to quickly implement a search algorithm. A subclass would define the necessary operations, and the algorithm does the rest.
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