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Asynchronous vs Multithreading - Is there a difference?
Does an asynchronous call always create a new thread? What is the difference between the two?
10 Answers
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Make a negative number positive
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Just call Math.abs. For example:
int x = Math.abs(-5);
Which will set x to 5.
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Why should I prefer to use member initialization lists?
...style. For class members which are classes, then it avoids an unnecessary call to a default constructor. Consider:
class A
{
public:
A() { x = 0; }
A(int x_) { x = x_; }
int x;
};
class B
{
public:
B()
{
a.x = 3;
}
private:
A a;
};
In this case, the construc...
Android Drawing Separator/Divider Line in Layout?
I would like to draw a line right in the middle of a layout and use it as a separator of other items like TextView. Is there a good widget for this. I don't really want to use an image as it would be hard to match the other components to it. And I want it to be relatively positioned as well. Than...
How to stop a PowerShell script on the first error?
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note that psake has a commandlet called "exec" which can you can use to wrap calls to external programs with a check for LastExitCode and display an error (and stop, if desired)
– enorl76
Nov 28 '12 at 20:01
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Why is JavaScript called JavaScript, since it has nothing to do with Java? [closed]
...ECMAScript is the "standards" name for the language.
JavaScript is technically a "dialect" of ECMAScript, the Mozilla Foundation can use "JavaScript" as the name of their implementations (currently present on the Rhino and SpiderMonkey engines).
In the early days, Microsoft decided also to do wha...
Call removeView() on the child's parent first
... but its showing error "The specified child already has a parent. You must call removeView() on the child's parent first." how to solve this?
– Imranrana07
Apr 10 '19 at 11:22
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Create a custom callback in JavaScript
All I need to do is to execute a callback function when my current function execution ends.
10 Answers
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How to call one shell script from another shell script?
...the path where the file is to the $PATH environment variable. Then you can call it as a normal command;
Or call it with the source command (alias is .) like this: source /path/to/script;
Or use the bash command to execute it: /bin/bash /path/to/script;
The first and third methods execute the scrip...
Why is a C++ Vector called a Vector?
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Vectors are only typically considered 2-3 dimensional because of their use in physics. But more generally in mathematics, they just mean a set of numbers that has an order (mathematical sets are orderless, they're like a bag filled with stuff). A...