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Stack smashing detected
...elated errors, but like a debugger, it may help you pin-point the location and reason for the crash.
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Get a pixel from HTML Canvas?
....getContext('2d');
// Get the CanvasPixelArray from the given coordinates and dimensions.
var imgd = context.getImageData(x, y, width, height);
var pix = imgd.data;
// Loop over each pixel and invert the color.
for (var i = 0, n = pix.length; i < n; i += 4) {
pix[i ] = 255 - pix[i ]; // r...
Display numbers with ordinal suffix in PHP
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Although a bit difficult to understand at first, I do now think it best represents how the ordinal suffix system works for English.
– erisco
Jun 24 '10 at 14:44
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Using jQuery to compare two arrays of Javascript objects
...that I'd like to compare to see if they are the same. The objects may not (and most likely will not) be in the same order in each array. Each array shouldn't have any more than 10 objects. I thought jQuery might have an elegant solution to this problem, but I wasn't able to find much online.
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Are there console commands to look at whats in the queue and to clear the queue in Sidekiq?
...g delayed_jobs method of going into the console to see whats in the queue, and the ease of clearing the queue when needed. Are there similar commands in Sidekiq for this? Thanks!
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How to select a single field for all documents in a MongoDB collection?
... MongoDB, I have a student collection with 10 records having fields name and roll . One record of this collection is:
1...
How to find the size of localStorage
...ript stores as UTF-16 (occupies 2 bytes)
P.P.S. Should work both in Chrome and Firefox.
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How to check if a String contains another String in a case insensitive manner in Java?
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@user01 correctness comes before performance, and using toLowerCase will give potentially incorrect results (for example, when comparing certain Greek text containing the letter Sigma, which has two lowercase forms for the same uppercase form).
– Kl...
Converting strings to floats in a DataFrame
How to covert a DataFrame column containing strings and NaN values to floats. And there is another column whose values are strings and floats; how to convert this entire column to floats.
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What's the difference between eval, exec, and compile?
I've been looking at dynamic evaluation of Python code, and come across the eval() and compile() functions, and the exec statement.
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