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The tilde operator in Python
...pes are just different ways of interpreting bytes. It is the "invert" or "complement" operation, in which all the bits of the input data are reversed.
In Python, for integers, the bits of the twos-complement representation of the integer are reversed (as in b <- b XOR 1 for each individual bit)...
Usage of __slots__?
...ot descriptor has a slot separate from the Wrong's. This shouldn't usually come up, but it could:
>>> w = Wrong()
>>> w.foo = 'foo'
>>> Base.foo.__get__(w)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: foo
>>>...
Which regular expression operator means 'Don't' match this character?
...eUploader: {
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How do you build a Singleton in Dart?
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View contents of database file in Android Studio
...a remote shell instead of pulling the file each time.
Find all info here:
http://developer.android.com/tools/help/adb.html#sqlite
1- Go to your platform-tools folder in a command prompt
2- Enter the command adb devices to get the list of your devices
C:\Android\adt-bundle-windows-x86_64\sdk\plat...
leading zeros in rails
...eUploader: {
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Use of 'prototype' vs. 'this' in JavaScript?
...
The examples have very different outcomes.
Before looking at the differences, the following should be noted:
A constructor's prototype provides a way to share methods and values among instances via the instance's private [[Prototype]] property.
A function's ...
How can I quickly delete a line in VIM starting at the cursor position?
...
Press ESC to first go into command mode. Then Press Shift+D.
https://www.fprintf.net/vimCheatSheet.html
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Is it possible to get the non-enumerable inherited property names of an object?
...nPropertyNames can get you non-enumerable properties, you can use that and combine it with walking up the prototype chain.
function getAllProperties(obj){
var allProps = []
, curr = obj
do{
var props = Object.getOwnPropertyNames(curr)
props.forEach(function(prop){
...
Stop all active ajax requests in jQuery
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here is simple working example: stackoverflow.com/a/42312101/3818394
– Dharmesh patel
Feb 18 '17 at 6:53
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