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Python creating a dictionary of lists
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Oh. This is great. And you don't have to initialize to '= []'. Good stuff!
– Wilmer E. Henao
Dec 7 '17 at 23:16
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jQuery: Test if checkbox is NOT checked
...res the actual state of the checkbox. If you wish you can inspect the page and try to check and uncheck a checkbox, and you will notice the attribute "checked" (if present) will remain the same. This attribute only represents the initial state of the checkbox, and not the current state. The current ...
Why does .NET use banker's rounding as default?
...s performed, you will average out that all .5's end up rounding equally up and down. This gives better estimations of actual results if you are for instance, adding a bunch of rounded numbers. I would say that even though it isn't what some may expect, it's probably the more correct thing to do.
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Is there a way to access an iteration-counter in Java's for-each loop?
...r to loop through the "collection" - which may not be a collection at all, and may in fact be something not at all based on indexes (such as a linked list).
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JavaScript equivalent of PHP's in_array()
Is there a way in JavaScript to compare values from one array and see if it is in another array?
20 Answers
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JavaScript: Object Rename Key
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The most complete (and correct) way of doing this would be, I believe:
if (old_key !== new_key) {
Object.defineProperty(o, new_key,
Object.getOwnPropertyDescriptor(o, old_key));
delete o[old_key];
}
This method ensures that t...
cocktail party algorithm SVD implementation … in one line of code?
... a slide within the introductory lecture on machine learning by Stanford's Andrew Ng at Coursera, he gives the following one line Octave solution to the cocktail party problem given the audio sources are recorded by two spatially separated microphones:
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Is there a better way to write this null check, and a non-empty check, in groovy?
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@VinodJayachandran Yes
– dmahapatro
Dec 3 '15 at 12:41
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Do you use NULL or 0 (zero) for pointers in C++?
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Here's Stroustrup's take on this: C++ Style and Technique FAQ
In C++, the definition of NULL is 0, so there is only an aesthetic difference. I prefer to avoid macros, so I use 0. Another problem with NULL is that people sometimes mistakenly believe that it is differen...
Bootstrap Modal immediately disappearing
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bootstrap.min.js (same as above, just minified)
bootstrap-modal.js (the standalone plugin)
a dependency loader, e.g., require('bootstrap')
Debugging Tips
A good place to start is to inspect the registered click event listeners using the developer tools in your browser. Chrome, for instance, wil...