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How can I check if a URL exists via PHP?
...simple example and will not match all the urls listed in there. See this test url: regex101.com/r/EpyDDc/2 If you want a better one, replace it with the one listed on your link ( mathiasbynens.be/demo/url-regex ) from diegoperini ; it seems to match all of them, see this testlink: regex101.com/r/...
In Python, when to use a Dictionary, List or Set?
...of distinct hashable objects. A set is commonly used to include membership testing, removing duplicates from a sequence, and computing mathematical operations such as intersection, union, difference, and symmetric difference.
...
No line-break after a hyphen
...he word joiner to be closer to content, when compared to tags.
• As tested on Windows 8.1 Core 64-bit using:
• IE 11.0.9600.18205
• Firefox 43.0.4
• Chrome 48.0.2564.109 (Official Build) m (32-bit)
• Opera 35.0.2066.92
...
Javascript: How to detect if browser window is scrolled to bottom?
...Offset) >= document.body.offsetHeight - 2
I didn't have the chance to test it further, if someone can comment about this specific issue it will be great.
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How do I parse a string with a decimal point to a double?
... we write 3,5 instead of 3.5 and this function gives us 35 as a result.
I tested both on my computer:
double.Parse("3.5", CultureInfo.InvariantCulture) --> 3.5 OK
double.Parse("3,5", CultureInfo.InvariantCulture) --> 35 not OK
This is a correct way that Pierre-Alain Vigeant mentioned
publ...
HTTP headers in Websockets client API
...d" base64 encoded:
Authorization: Basic dXNlcm5hbWU6cGFzc3dvcmQ=
I have tested basic auth in Chrome 55 and Firefox 50 and verified that the basic auth info is indeed negotiated with the server (this may not work in Safari).
Thanks to Dmitry Frank's for the basic auth answer
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Calc of max, or max of calc in CSS
...depen (easier to see the demo on CodePen, and you can edit it for your own testing).
.parent600, .parent500, .parent400 {
height: 80px;
border: 1px solid lightgrey;
}
.parent600 {
width: 600px;
}
.parent500 {
width: 500px;
}
.parent400 {
width: 400px;
}
.paren...
Difference between `mod` and `rem` in Haskell
... Also from stackoverflow.com/a/6964760/205521 it seems like rem is fastest.
– Thomas Ahle
Sep 28 '14 at 10:53
17
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Why CancellationToken is separate from CancellationTokenSource?
...rds the cancellation to all the tokens it has issued.
This great for unit testing BTW - create your own cancellation token source, get a token, call Cancel on the source, and pass the token to your code that has to handle the cancellation.
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How to make asynchronous HTTP requests in PHP
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In my testing, using exec("curl $url > /dev/null 2>&1 &"); is one of the fastest solutions here. It's immensely faster (1.9s for 100 iterations) than the post_without_wait() function (14.8s) in the "accepted" answer ...