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Fast way to get image dimensions (not filesize)
...ooking for a fast way to get the height and width of an image in pixels. It should handle at least JPG, PNG and TIFF, but the more the better. I emphasize fast because my images are quite big (up to 250 MB) and it takes soooo long to get the size with ImageMagick's identify because it obviousl...
Should private helper methods be static if they can be static
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I prefer such helper methods to be private static; which will make it clear to the reader that they will not modify the state of the object. My IDE will also show calls to static methods in italics, so I will know the method is static without looking the signature.
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How to get the first element of an array?
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@Andy There were no assumptions, as OP's question was quite clear and specific.
– John Hartsock
Aug 11 '15 at 0:36
5
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Why do people say that Ruby is slow? [closed]
I like Ruby on Rails and I use it for all my web development projects. A few years ago there was a lot of talk about Rails being a memory hog and about how it didn't scale very well but these suggestions were put to bed by Gregg Pollack here.
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What is DOM Event delegation?
Can anyone please explain event delegation in JavaScript and how is it useful?
11 Answers
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How to save an activity state using save instance state?
I've been working on the Android SDK platform, and it is a little unclear how to save an application's state. So given this minor re-tooling of the 'Hello, Android' example:
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Getting the caller function name inside another function in Python? [duplicate]
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You can use the inspect module to get the info you want. Its stack method returns a list of frame records.
For Python 2 each frame record is a list. The third element in each record is the caller name. What you want is this:
>>> import inspect
>>> def f():
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Why does sizeof(x++) not increment x?
...mine)
6.5.3.4/2
The sizeof operator yields the size (in bytes) of its operand, which may be an expression or the parenthesized name of a type. The size is determined from the type of the operand. The result is an integer. If the type of the operand is a variable length array type, the opera...
Why is the tag deprecated in HTML?
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The <center> element was deprecated because it defines the presentation of its contents — it does not describe its contents.
One method of centering is to set the margin-left and margin-right properties of the element to auto, and then set the parent element’s tex...
How to make a node.js application run permanently?
...server, I installed Node.js. I understand how to launch an app from putty with this command line:
19 Answers
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