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What does this symbol mean in JavaScript?
...This is also a Community Wiki, so everyone is invited to participate in maintaining this list.
1 Answer
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How do I do a multi-line string in node.js?
...for me, is the same thing wrong with Groovy last I checked. When a file is converted from .coffee to .js, the line numbers are jumbled. I have not tried CoffeeScript, but when I tried Groovy, I found it quite difficult to debug without getting the generated .java files.
– Bryan...
Finding Variable Type in JavaScript
...boxed object is created, using them as functions can be actually be useful converting from other types. Boolean(0) === false, Number(true) === 1
– Juan Mendes
Jul 16 '18 at 15:08
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Why are mutable structs “evil”?
...bjects tend to have multiple properties; yet if you have a struct with two ints, a string, a DateTime and a bool, you can very quickly burn through a lot of memory. With a class, multiple callers can share a reference to the same instance (references are small).
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Select top 10 records for each category
... This works, but be aware that rank() is likely to be turned into a full table sort by the query planner if there isn't an index who's first key is the RankCriteria. In this case you may get better mileage selecting the distinct sections and cross applying to pick out the top 10 ordere...
Printing tuple with string formatting in Python
So, i have this problem.
I got tuple (1,2,3) which i should print with string formatting.
eg.
14 Answers
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Android: Remove all the previous activities from the back stack
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The solution proposed here worked for me:
Java
Intent i = new Intent(OldActivity.this, NewActivity.class);
// set the new task and clear flags
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(i);
Kotlin
val i = Intent(this, New...
Short circuit Array.forEach like calling break
... one where callback returns a truthy value (a value that becomes true when converted to a Boolean). If such an element is found, some() immediately returns true. Otherwise, some() returns false. callback is invoked only for indexes of the array which have assigned values; it is not invoked for index...
How do I join two lists in Java?
...o not modifiy the original lists; JDK only, no external libraries. Bonus points for a one-liner or a JDK 1.3 version.
32 An...
When should a class be Comparable and/or Comparator?
... another object. The class itself must implements the java.lang.Comparable interface in order to be able to compare its instances.
Comparator
A comparator object is capable of comparing two different objects. The class is not comparing its instances, but some other class’s instances. This compar...