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Better way of getting time in milliseconds in javascript?
...t likely due to garbage collection. Typically garbage collection can be avoided by reusing variables as much as possible, but I can't say specifically what methods you can use to reduce garbage collection pauses.
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Finding the index of elements based on a condition using python list comprehension
...do need an API similar to Matlab's, you would use numpy, a package for multidimensional arrays and numerical math in Python which is heavily inspired by Matlab. You would be using a numpy array instead of a list.
>>> import numpy
>>> a = numpy.array([1, 2, 3, 1, 2, 3])
>>>...
When would I use Task.Yield()?
...od that requires some "long running" initialization, ie:
private async void button_Click(object sender, EventArgs e)
{
await Task.Yield(); // Make us async right away
var data = ExecuteFooOnUIThread(); // This will run on the UI thread at some point later
await UseDataAsync(da...
How do I use Node.js Crypto to create a HMAC-SHA1 hash?
...
A few years ago it was said that update() and digest() were legacy methods and the new streaming API approach was introduced. Now the docs say that either method can be used. For example:
var crypto = require('crypto');
var text = 'I love cu...
How do I make JavaScript beep?
...ript>
function PlaySound(soundObj) {
var sound = document.getElementById(soundObj);
sound.Play();
}
</script>
<embed src="success.wav" autostart="false" width="0" height="0" id="sound1"
enablejavascript="true">
You would then call it from JavaScript code as such:
PlaySound("so...
Inheritance and Overriding __init__ in python
...elf), actually, but nothing's wrong with it - the super(...) call just provides a more consistent syntax. (I'm not sure how it works for multiple inheritance, I think it may only find one superclass init)
– David Z
Apr 15 '09 at 21:47
...
jQuery’s .bind() vs. .on()
...or dealing with specific types of asynchronous requests. .bind and .on are identical for non-delegated events; .bind does not provide any kind of shortcut like $.getJSON does
– jackwanders
Aug 7 '12 at 14:06
...
What are the advantages of NumPy over regular Python lists?
... of vector and matrix operations for free, which sometimes allow one to avoid unnecessary work. And they are also efficiently implemented.
For example, you could read your cube directly from a file into an array:
x = numpy.fromfile(file=open("data"), dtype=float).reshape((100, 100, 100))
Sum alo...
Is it considered acceptable to not call Dispose() on a TPL Task object?
...: to free up unmanaged resources in a timely, deterministic way, and to avoid the cost of running the object's finalizer. Neither of these apply to Task most of the time:
As of .Net 4.5, the only time a Task allocates the internal wait handle (the only unmanaged resource in the Task object) is whe...
mysql - how many columns is too many?
...
It's considered too many once it's above the maximum limit supported by the database.
The fact that you don't need every column to be returned by every query is perfectly normal; that's why SELECT statement lets you explicitly name t...