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Get all unique values in a JavaScript array (remove duplicates)
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Thanks to Camilo Martin for hint in comment.
ES6 has a native object Set to store unique values. To get an array with unique values you could do now this:
var myArray = ['a', 1, 'a', 2, '1'];
let unique = [...new Set(myArray)];
console.log(unique); // unique is ['a', 1, 2, '1']
The...
How do malloc() and free() work?
I want to know how malloc and free work.
13 Answers
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How can I temporarily disable a foreign key constraint in MySQL?
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Try DISABLE KEYS or
SET FOREIGN_KEY_CHECKS=0;
Make sure to
SET FOREIGN_KEY_CHECKS=1;
after.
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Why did my Git repo enter a detached HEAD state?
I ended up with a detached head today, the same problem as described in: git push says everything up-to-date even though I have local changes
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How to set cursor position in EditText?
There are two EditText ,while loading the page a text is set in the first EditText, So now cursor will be in the starting place of EditText , I want to set cursor position in the second EditText which contains no data. How to do this?
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Troubleshooting “Illegal mix of collations” error in mysql
...uses another error: COLLATION 'utf8_general_ci' is not valid for CHARACTER SET 'latin1'' - even if you do not have a column with CHARACTER SET 'latin1'! The solution is to use the BINARY cast. See also this question
– Mel_T
Oct 22 '19 at 9:15
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How to set Java environment path in Ubuntu
...r the installation where's the Java bin directory located? And how can I set the environment path for that directory? I have little experience with Ubuntu, can anyone give some advice or suggest any good website for reference?
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How to create the most compact mapping n → isprime(n) up to a limit N?
...from a file in a linear fashion. If you really want to read from a stored set of pre-generated primes, try a more complicated data structure that speeds up the problem.
– CogitoErgoCogitoSum
Jul 25 '17 at 14:03
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When should I use double or single quotes in JavaScript?
console.log("double"); vs. console.log('single');
44 Answers
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Code-first vs Model/Database-first [closed]
...ify relationships, constraints,
and associations. You can simultaneously set property character limits
and database column sizes. You can specify which related collections
are to be eager loaded, or not be serialized at all. In short, you are
responsible for more stuff but you’re in full c...