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Transposing a 2D-array in JavaScript
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210
array[0].map((_, colIndex) => array.map(row => row[colIndex]));
map calls a provided ...
Why am I seeing “TypeError: string indices must be integers”?
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answered May 20 '11 at 21:16
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Automatically update version number
...ld but I'm not sure on how to enable this functionality in Visual Studio (2005/2008). I have tried to specify the AssemblyVersion as 1.0.* but it doesn't get me exactly what I want.
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CGContextDrawImage draws image upside down when passed UIImage.CGImage
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Instead of
CGContextDrawImage(context, CGRectMake(0, 0, 145, 15), image.CGImage);
Use
[image drawInRect:CGRectMake(0, 0, 145, 15)];
In the middle of your begin/end CGcontext methods.
This will draw the image with the correct orientation into your current image context...
printf() formatting for hex
...hy when printing hex as an 8 digit number with leading zeros, does this %#08X Not display the same result as 0x%08X ?
3 ...
How to swap two variables in JavaScript
...swap the values of two variables.
Given variables a and b:
b = [a, a = b][0];
Demonstration below:
var a=1,
b=2,
output=document.getElementById('output');
output.innerHTML="<p>Original: "+a+", "+b+"</p>";
b = [a, a = b][0];
output.innerHTML+="<p>Swapped: ...
How is “=default” different from “{}” for default constructor and destructor?
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105
This is a completely different question when asking about constructors than destructors.
If yo...
Sequence contains more than one element
...ault. This method will only succeed when the collections contains exactly 0 or 1 element. I believe you are looking for FirstOrDefault which will succeed no matter how many elements are in the collection.
share
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JavaScript get window X/Y position for scroll
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The method jQuery (v1.10) uses to find this is:
var doc = document.documentElement;
var left = (window.pageXOffset || doc.scrollLeft) - (doc.clientLeft || 0);
var top = (window.pageYOffset || doc.scrollTop) - (doc.clientTop || 0);
That is:
It...
Code for a simple JavaScript countdown timer?
I want to use a simple countdown timer starting at 30 seconds from when the function is run and ending at 0. No milliseconds. How can it be coded?
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