大约有 29,000 项符合查询结果（耗时：0.0597秒） [XML]
AngularJS : Prevent error $digest already in progress when calling $scope.$apply()
...nd up causing more errors than it solves. Even though you think it fixed something, it didn't.
You can check if a $digest is already in progress by checking $scope.$$phase.
if(!$scope.$$phase) {
//$digest or $apply
}
$scope.$$phase will return "$digest" or "$apply" if a $digest or $apply is...
Purpose of buildscript block in Gradle
I am new to Gradle and I am reading the documentation but I don't understand some parts of it. One of these parts is connected with buildscript block. What is its purpose?
...
Accessing MP3 metadata with Python [closed]
How can I retrieve mp3 metadata in Python?
16 Answers
16
...
Scheduling R Script
I have written an R script that pulls some data from a database, performs several operations on it and post the output to a new database.
...
How do you fix a bad merge, and replay your good commits onto a fixed merge?
I accidentally committed an unwanted file ( filename.orig while resolving a merge) to my repository several commits ago, without me noticing it until now. I want to completely delete the file from the repository history.
...
How can I create an object and add attributes to it?
...ttributes (including lambda functions). So, the following works:
obj = someobject
obj.a = lambda: None
setattr(obj.a, 'somefield', 'somevalue')
Whether the loss of clarity compared to the venerable Bunch recipe is OK, is a style decision I will of course leave up to you.
...
Method Syntax in Objective-C
Can someone explain this method declaration syntax for me? In this function, the number of rows of a UIPickerView (slot machine UI on the iPhone) is being returned. From my understanding, the Method is called ' pickerView ', and returns an NSInteger.
...
Why is a pure virtual function initialized by 0?
... could get another keyword, such as "pure" past the C++ community at the time the feature was being implemented. This is described in his book, The Design & Evolution of C++, section 13.2.3:
The curious =0 syntax was chosen ...
because at the time I saw no chance of
getting a new keyword...
Quit and restart a clean R session from within R?
... I find the .rs.restartR() useful for cases where R wouldn't free up memory even after remove(list=ls()); gc();. This definitely frees up the memory. I also like the fact that it doesn't detach packages.
– Richard DiSalvo
Apr 20 '17 at 17:09
...
How do I use LINQ Contains(string[]) instead of Contains(string)
...values of the array as a substring??? Even if you did write the extension method the sense of it would be wrong.
[EDIT]
Unless you changed it around and wrote it for string[] as Mitch Wheat demonstrates, then you'd just be able to skip the conversion step.
[ENDEDIT]
Here is what you want, if...