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Why is React's concept of Virtual DOM said to be more performant than dirty model checking?
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Does React do dirty checking on component props? I ask because there's no setProps() function.
– bennlich
Oct 2 '14 at 22:16
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Null vs. False vs. 0 in PHP
...good "nothing" entities.
What is the difference, specifically in PHP? Does it have something to do with === ?
18 Answ...
How do you get the index of the current iteration of a foreach loop?
...e foreach is for iterating over collections that implement IEnumerable. It does this by calling GetEnumerator on the collection, which will return an Enumerator.
This Enumerator has a method and a property:
MoveNext()
Current
Current returns the object that Enumerator is currently on, MoveNext upd...
Difference between console.log() and console.debug()?
...ole.log"); instead of console.log("Console.log" + " " + playerOne);? What does the " " + playerOne do?
– hofnarwillie
Oct 3 '18 at 6:51
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When should I use a composite index?
...you're always querying two dimensions, a composite index is the way to go, doesn't really matter which is first (most probably).
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Is there an easy way to strike through text in an app widget?
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First it is unclear what is remoteviews , plus doesn't work for all android versions.
– akshat tailang
Nov 28 '18 at 18:26
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How to open multiple pull requests on GitHub
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This does not solve the issue: When I try to create a PR both branches (with at least one commit each) are compared. What am I doing wrong?
– MERose
Dec 28 '16 at 18:24
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Immutability of Strings in Java
...e whenever you wonder how something really works) you can see that what it does is the following:
If there is one or more occurrences of oldChar in the current string, make a copy of the current string where all occurrences of oldChar are replaced with newChar.
If the oldChar is not present in the ...
Python function overloading
I know that Python does not support method overloading, but I've run into a problem that I can't seem to solve in a nice Pythonic way.
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Oracle Differences between NVL and Coalesce
... level <= 10000
)
This understands that 1 is not a NULL and does not evaluate the second argument.
SYS_GUID's are not generated and the query is instant.
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