大约有 45,000 项符合查询结果（耗时：0.0867秒） [XML]
I need to pop up and trash away a “middle” commit in my master branch. How can I do it?
...it will look like that second commit never existed. This will be a problem if you've pushed the master branch out to any other repos. If you try to push after a rebase in this case, git will give you a reject non fast-forward merges error.
Revert is the correct solution when the branch has been sha...
How do I check if an element is hidden in jQuery?
...to find a match, which satisfies the passed parameter. It will return true if there is a match, otherwise return false.
share
|
improve this answer
|
follow
|
...
Difference between const & const volatile
If we declare a variable as volatile every time the fresh value is updated
If we declare a variable as const then the value of that variable will not be changed
...
Convert light frequency to RGB?
...(double Wavelength) {
double factor;
double Red, Green, Blue;
if((Wavelength >= 380) && (Wavelength < 440)) {
Red = -(Wavelength - 440) / (440 - 380);
Green = 0.0;
Blue = 1.0;
} else if((Wavelength >= 440) && (Wavelength < 490)) {
...
How do I grab an INI value within a shell script?
...them: echo $var1. You may also use arrays as shown above (echo ${IPS[@]}).
If you only want a single value just grep for it:
source <(grep var1 file.ini)
For the demo, check this recording at asciinema.
It is simple as you don't need for any external library to parse the data, but it comes with ...
Can one AngularJS controller call another?
...rvice)
{
// has a reference to the same instance of the service
// so if the service updates state for example, this controller knows about it
}
Another way is emitting an event on scope:
function FirstController($scope)
{
$scope.$on('someEvent', function(event, args) {});
// another co...
Best way to clear a PHP array's values
...o simply re-instantiate it using
$foo = array(); // $foo is still here
If you want something more powerful use unset since it also will clear $foo from the symbol table, if you need the array later on just instantiate it again.
unset($foo); // $foo is gone
$foo = array(); // $foo is here again
...
How do I use shell variables in an awk script?
...everal ways. Some are better than others. This should cover most of them. If you have a comment, please leave below. v1.5
Using ...
Running bash script from within python
...
The shell=True parameter is not needed (under a Posix system like Linux) if the first line of the bash script is a path to a shell; for example, #!/bin/bash.
share
|
improve this answer
|...
How to find out if a file exists in C# / .NET?
...
File.Exists(path) returns false even if the file exists BUT caller lacks permission to read it. Is there a different way to handle this kind of situations and check whether a file exists even if the caller cannot read it?
– ADTC
...