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Looping over arrays, printing both index and value
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The use of [@] and double quotes means it's not a "space separated list of words". You get the list of actual array keys, even if the individual keys contain whitespace.
– glenn jackman
Aug 21 '16 at 1...
is_null($x) vs $x === null in PHP [duplicate]
PHP has two (that I know of, and three if you count isset() ) methods to determine if a value is null: is_null() and === null . I have heard, but not confirmed, that === null is faster, but in a code review someone strongly suggested that I use is_null() instead as it is specifically design...
Skip first entry in for loop in python?
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I found that doing cars.pop(0) and cars.pop() works well.
– dreamwork801
Oct 23 '18 at 13:37
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How to get diff working like git-diff?
I like the output formatting of git diff . The color and the + / - representation of changes between lines is easier to read than GNU diff.
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How to implement onBackPressed() in Fragments?
Is there a way in which we can implement onBackPressed() in Android Fragment similar to the way in which we implement in Android Activity?
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Collection versus List what should you use on your interfaces?
... the question as to why not List<T>, The reasons are future-proofing and API simplicity.
Future-proofing
List<T> is not designed to be easily extensible by subclassing it; it is designed to be fast for internal implementations. You'll notice the methods on it are not virtual and so can...
How to Loop through items returned by a function with ng-repeat?
...ope for all watches $digest runs it, gets current value (watch.get(scope)) and compares it to watch.last. If current value is not equal to watch.last (always for first compare) $digest sets dirty to true. When all scopes are processed if dirty == true $digest starts another depth-first traversal fro...
How to calculate time difference in java?
...ariables won't do much good.. In this example, sure, you could invert them and take the absolute value or something. But what happens if you have midnight (00:00)?
– rj2700
Feb 20 '17 at 23:00
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Can I use jQuery with Node.js?
...his returns require("...").env is not a function.
– Banderi
May 28 '17 at 2:41
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@Banderi same wi...
What does “static” mean in C?
...l for cases where a function needs to keep some state between invocations, and you don't want to use global variables. Beware, however, this feature should be used very sparingly - it makes your code not thread-safe and harder to understand.
(2) Is used widely as an "access control" feature. If you...