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How do I check if a directory exists? “is_dir”, “file_exists” or both?
...
I think realpath() may be the best way to validate if a path exist
http://www.php.net/realpath
Here is an example function:
<?php
/**
* Checks if a folder exist and return canonicalized absolute pathname (long version)
* @param string $folder the path being checked.
* @return mixed r...
What does the function then() mean in JavaScript?
...e might translate to something like the following, using
promises and the $http service(in AngularJs):
$http.get('/api/server-config').then(
function(configResponse) {
return $http.get('/api/' + configResponse.data.USER_END_POINT);
}
).then(
function(userResponse) {
retu...
What is the difference between char array and char pointer in C?
...@leszek.hanusz Undefined Behaviour stackoverflow.com/questions/2766731/… Google "C language UB" ;-)
– Ciro Santilli 郝海东冠状病六四事件法轮功
May 3 '16 at 9:47
...
Show DialogFragment with animation growing from a point
...n.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<scale
android:interpolator="@android:anim/linear_interpolator"
android:fromXScale="0.0"
android:toXScale="1.0"
android:fromYScale="0.0"
...
What is a non-capturing group in regular expressions?
...Let me try to explain this with an example.
Consider the following text:
http://stackoverflow.com/
https://stackoverflow.com/questions/tagged/regex
Now, if I apply the regex below over it...
(https?|ftp)://([^/\r\n]+)(/[^\r\n]*)?
... I would get the following result:
Match "http://stackoverf...
Uber5岁了，一次性告诉你它的商业之道 - 资讯 - 清泛网 - 专注C/C++及内核技术
...后，Uber便成为移动互联网领域投资者竞相关注的对象，Google、黑石、红杉等先后为其注资，累计融资近40亿美元。2014年12月融资过程中，Uber的估值高达410亿美元。业内人士普遍认为，在2015年新一轮融资结束后，Uber将达到硅谷历...
Which would be better for concurrent tasks on node.js? Fibers? Web-workers? or Threads?
... it lacked badly the ability to perform CPU-intensive tasks. So, I started googling and got these answers to solve the problem: Fibers, Webworkers and Threads (thread-a-gogo). Now which one to use is a confusion and one of them definitely needs to be used - afterall what's the purpose of having a se...
Decimal separator comma (',') with numberDecimal inputType in EditText
...
A workaround (until Google fix this bug) is to use an EditText with android:inputType="numberDecimal" and android:digits="0123456789.,".
Then add a TextChangedListener to the EditText with the following afterTextChanged:
public void afterText...
When do I need to use Begin / End Blocks and the Go keyword in SQL Server?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How to create query parameters in Javascript?
... finalUrl = url + params; // Is this the right use? Should produce https://www.something.com/?bloop1=true&bloop2=something ?
– dylanh724
Oct 20 '17 at 4:13
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