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Convert text into number in MySQL query
...RT(SUBSTRING_INDEX(field,'-',-1),UNSIGNED INTEGER) AS num
FROM table
ORDER BY num;
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What is the difference between a pseudo-class and a pseudo-element in CSS?
...e selectors.
A pseudo-class always consists of a "colon" (:) followed by the name of the pseudo-class and optionally by a value between parentheses.
Pseudo-classes are allowed in all sequences of simple selectors contained in a selector. Pseudo-classes are allowed anywhere in sequences of ...
What does dot (.) mean in a struct initializer?
...This is a C99 feature that allows you to set specific fields of the struct by name in an initializer. Before this, the initializer needed to contain just the values, for all fields, in order -- which still works, of course.
So for the following struct:
struct demo_s {
int first;
int s...
Why are these constructs using pre and post-increment undefined behavior?
...
...by getting into extreme detail about which corner cases are or are not defined, the authors of the Standard recognized that implementors should be better paced to judge which kinds of behaviors will be needed by the kinds of ...
Reset/remove CSS styles for element only
...ist
Related
Related from MDN
Related W3C specs
As mentioned in a comment by @user566245 :
this is correct in principle, but individual mileage may vary. For
example certain elements like textarea by default have a border,
applying this reset will render those textarea's border less.
[POS...
Find and Replace Inside a Text File from a Bash Command
...xample: sed -i '.bak' 's/find/replace/' /file.txt You can skip the backup by using an empty string like so: sed -i '' 's/find/replace/' /file.txt
– Austin
Feb 21 '13 at 21:36
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How to get element by class name? [duplicate]
Using JavaScript, we can get element by id using following syntax:
4 Answers
4
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Android Studio: Module won't show up in “Edit Configuration”
...d similar issue when I selected parent directory of my project, I resolved by Close Project -> Delete Project from Android Studio -> Import Project by selecting right build.gradle file.
Make sure you select right build.gradle file while import.
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How to properly exit a C# application?
...shed application in C#. The problem here is whenever I close the main form by clicking on the red exit button, it closes the form but it doesn't close the application. I found this out when I tried shutting down the computer, hopeful that the application I made was running smoothly then I was bombar...
Creating an instance of class
...ere.
/* 8 */ Bar* bar3 = new Bar ( Foo::Foo() );
Would work and work by the same principle to 5 and 6 if bar3 wasn't declared on in 7.
5 & 6 contain memory leaks.
Syntax like new Bar ( Foo::Foo() ); is not usual. It's usually new Bar ( (Foo()) ); - extra parenthesis account for most-vexi...