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What does it mean by select 1 from table?
I have seen many queries with something as follows.
15 Answers
15
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Does Typescript support the ?. operator? (And, what's it called?)
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Update: it is supported as of TypeScript 3.7 and called Optional chaining: https://www.typescriptlang.org/docs/handbook/release-notes/typescript-3-7.html#optional-chaining
I can't find any reference to it whatsoever in the TypeScrip...
How to fix “Headers already sent” error in PHP
...generate_id
setcookie / setrawcookie
Output can be:
Unintentional:
Whitespace before <?php or after ?>
The UTF-8 Byte Order Mark specifically
Previous error messages or notices
Intentional:
print, echo and other functions producing output
Raw <html> sections prior <?php ...
What does the 'static' keyword do in a class?
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static members belong to the class instead of a specific instance.
It means that only one instance of a static field exists[1] even if you create a million instances of the class or you don't create any. It will be shared by all instances.
Since static methods also do not belong to a specif...
Why not to deploy on a Friday? [closed]
Joel mentioned in StackOverflow podcast #24 that it's FogCreek company policy to not ship software on Fridays. However, he didn't elaborate as to why.
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Why we should not use protected static in java
...n Is there a way to override class variables in Java?
The first comment with 36 upvotes was:
8 Answers
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What are the reasons why Map.get(Object key) is not (fully) generic
...in an Object as parameter, not just the same type as the object.
Although it may be commonly true that many classes have equals() defined so that its objects can only be equal to objects of its own class, there are many places in Java where this is not the case. For example, the specification for L...
When should I really use noexcept?
...ny function signatures, but I am unsure as to when I should consider using it in practice. Based on what I have read so far, the last-minute addition of noexcept seems to address some important issues that arise when move constructors throw. However, I am still unable to provide satisfactory answe...
In PowerShell, how do I define a function in a file and call it from the PowerShell commandline?
...follow
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edited Dec 27 '14 at 13:44
Peter Mortensen
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How do I get a PHP class constructor to call its parent's parent's constructor?
I need to have a class constructor in PHP call its parent's parent's (grandparent?) constructor without calling the parent constructor.
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