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What is the scope of variables in JavaScript?
What is the scope of variables in javascript? Do they have the same scope inside as opposed to outside a function? Or does it even matter? Also, where are the variables stored if they are defined globally?
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Get protocol + host name from URL
...overflow.com
If you prefer having a trailing slash appended, extend this script a bit like so:
parts = url.split('//', 1)
base = parts[0]+'//'+parts[1].split('/', 1)[0]
print base + (len(url) > len(base) and url[len(base)]=='/'and'/' or '')
That can probably be optimized a bit ...
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Python name mangling
...on for the lack of "private" is cultural, but you'll also notice that most scripting/interpreted languages have no private. A strictly enforceable private is not practical at anything except for compile time.
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Regex to validate date format dd/mm/yyyy
...you can test regular expression at http://www.regular-expressions.info/javascriptexample.html easily.
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Is there “0b” or something similar to represent a binary number in Javascript
I know that 0x is a prefix for hexadecimal numbers in Javascript. For example, 0xFF stands for the number 255.
10 Answe...
How to remove/ignore :hover css style on touch devices
...les using JS
You can remove all the CSS rules containing :hover using Javascript. This has the advantage of not having to touch CSS and being compatible even with older browsers.
function hasTouch() {
return 'ontouchstart' in document.documentElement
|| navigator.maxTouchPoints > 0
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How do I clone a subdirectory only of a Git repository?
...t/blob/v2.19.0/t/t5616-partial-clone.sh
Test it out locally
The following script reproducibly generates the https://github.com/cirosantilli/test-git-partial-clone repository locally, does a local clone, and observes what was cloned:
#!/usr/bin/env bash
set -eu
list-objects() (
git rev-list --all...
How to set the prototype of a JavaScript object that has already been instantiated?
Suppose I have an object foo in my JavaScript code. foo is a complex object and it is generated somewhere else. How can I change the prototype of the foo object?
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How exactly does CMake work?
...imple it's likely to be better to just write your own makefiles by hand or script them yourself. When your makefiles become unwieldy or you need to build a version of your system on another platform, then you can switch over to CMake. At that point, you'll have lots of problems to solve and you ca...
Select the values of one property on all objects of an array in PowerShell
...r alternative:
# By property name (string):
$objects.ForEach('Name')
# By script block (more flexibility; like ForEach-Object)
$objects.ForEach({ $_.Name })
This approach is similar to member enumeration, with the same tradeoffs, except that pipeline logic is not applied; it is marginally slower,...