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D3.js: How to get the computed width and height for an arbitrary element?
I need to know exactly the width and height for an arbitrary g element in my SVG because I need to draw a selection marker around it once the user has clicked it.
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Using print statements only to debug
...e me write a lot of print statements to verify if it's all going right and identify the points of failure. But, generally, outputting so much information is not a good practice. How do I use the print statements only when I want to debug and let them be skipped when I don't want them to be printed? ...
Incompatible implicit declaration of built-in function ‘malloc’
...t's defined as int malloc() which is incompatible with the built-in type void *malloc(size_t).
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How do I fit an image (img) inside a div and keep the aspect ratio?
I have a 48x48 div and inside it there is an img element, I want to fit it into the div without losing any part, in the mean time the ratio is kept, is it achievable using html and css?
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How do I access the request object or any other variable in a form's clean() method?
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The answer by Ber - storing it in threadlocals - is a very bad idea. There's absolutely no reason to do it this way.
A much better way is to override the form's __init__ method to take an extra keyword argument, request. This stores the request in the form, where it's required, and from...
What is the 
 character?
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This is the ASCII format.
Please consider that:
Some data (like URLs) can be sent over the Internet using the ASCII character-set.
Since data often contain characters outside the ASCII set, so it has
to be converted into a valid ASCII format.
To find i...
Xcode 4 - “Valid signing identity not found” error on provisioning profiles on a new Macintosh insta
...brary or under a heading called TEAMS.
Choose Export near the bottom left side of
the window. Xcode asks you to choose a file name and password.
Edit for Xcode 4.4:
With Xcode 4.4, at step 3 choose Provisioning Profiles under LIBRARY. Then select your provisioning profiles either with the mouse...
Determine if an object property is ko.observable
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It provides a valid way to access a property that may or may not be observable however it doesn't answer the question per se.
– Ozil
Jun 14 '17 at 10:41
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throw Error('msg') vs throw new Error('msg')
What's the difference? Looking at them in the chrome console, they look identical. Same properties on the object and the same __proto__ chain. Almost seems like Error acts like a factory.
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Unable to verify leaf signature
...y (by setting up CA certificates properly, as other answers have already said).
– Bruno
May 29 '15 at 21:41
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