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What is the “double tilde” (~~) operator in JavaScript? [duplicate]
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That ~~ is a double NOT bitwise operator.
It is used as a faster substitute for Math.floor().
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Reference assignment operator in PHP, =&
What does the =& (equals-ampersand) assignment operator do in PHP?
4 Answers
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How can I find the first occurrence of a sub-string in a python string?
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what if I want to find the word is from the sentence this is a cool dude ? I tried the find method but it returns index 2 instead of 5. How do i achieve this using find() ?
– Regressor
Apr 12 at 23:09
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How do I determine whether an array contains a particular value in Java?
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Arrays.asList(yourArray).contains(yourValue)
Warning: this doesn't work for arrays of primitives (see the comments).
Since java-8 you can now use Streams.
String[] values = {"AB","BC","CD","AE"};
boolean contains = Arrays.stream(values).anyMatch("s"::equals);
To check whether an array o...
How do I activate C++ 11 in CMake?
... try to run a CMake generated makefile to compile my program, I get the error that
14 Answers
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How do I find out which keystore was used to sign an app?
I have an app which is signed and several keystore files. I'd like to update the app, so I need to find out which one of keys was used.
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Encode URL in JavaScript?
...ion encodeURIComponent(str) and encodeURI(str).
In your case, this should work:
var myOtherUrl =
"http://example.com/index.html?url=" + encodeURIComponent(myUrl);
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Configure Flask dev server to be visible across the network
...http://localhost:5000 ), I cannot access it from other machines on the network (with http://[dev-host-ip]:5000 ). With Rails in dev mode, for example, it works fine. I couldn't find any docs regarding the Flask dev server configuration. Any idea what should be configured to enable this?
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switch / pattern matching idea
...eap the fence any time soon, it definitely highlights some areas where C# (or library support) could make life easier.
10 A...
Difference between __str__ and __repr__?
...efaults tend to be fairly useful. However, in this case, having a default for __repr__ which would act like:
return "%s(%r)" % (self.__class__, self.__dict__)
would have been too dangerous (for example, too easy to get into infinite recursion if objects reference each other). So Python cops out. ...