大约有 40,000 项符合查询结果（耗时：0.0488秒） [XML]
How to improve performance of ngRepeat over a huge dataset (angular.js)?
... - approach to overcoming these challenges with large datasets is embodied by the approach of Ionic's collectionRepeat directive and of other implementations like it. A fancy term for this is 'occlusion culling', but you can sum it up as: don't just limit the count of rendered DOM elements to an arb...
When is SQLiteOpenHelper onCreate() / onUpgrade() run?
...() callbacks are invoked when the database is actually opened, for example by a call to getWritableDatabase(). The database is not opened when the database helper object itself is created.
SQLiteOpenHelper versions the database files. The version number is the int argument passed to the constructor...
Automatically resize jQuery UI dialog to the width of the content loaded by ajax
... the exact problem was (it certainly wasn't obvious from Firebug anyway). By moving all my dialog divs to the top level and using the default 1.8.1 CSS (instead of our themed version) it works great. I'll gradually move our themed version back in when 1.8.1 release drops, and find the root of the ...
Only variables should be passed by reference
...tension = end($parts);
The reason is that the argument for end is passed by reference, since end modifies the array by advancing its internal pointer to the final element. If you're not passing a variable in, there's nothing for a reference to point to.
See end in the PHP manual for more info.
...
What’s the difference between ScalaTest and Scala Specs unit test frameworks?
...ory or a method named isDirectory. There's also a way to make this static, by defining a BePropertyMatcher (which requires only 2 or 3 lines of code usually). So basically in ScalaTest I try to provide more functionality with less API.
Another general design attitude difference between specs and Sc...
How do you divide each element in a list by an int?
I just want to divide each element in a list by an int.
7 Answers
7
...
What is “origin” in Git?
...cular remote repository. It's not actually a property of that repository.
By doing
git push origin branchname
you're saying to push to the origin repository. There's no requirement to name the remote repository origin: in fact the same repository could have a different alias for another develope...
Removing elements by class name?
...
If you prefer not to use JQuery:
function removeElementsByClass(className){
var elements = document.getElementsByClassName(className);
while(elements.length > 0){
elements[0].parentNode.removeChild(elements[0]);
}
}
...
Add data annotations to a class generated by entity framework
I have the following class generated by entity framework:
6 Answers
6
...
Understanding keystore, certificates and alias
...
The keystore file generated by Keytool stores pairs of private and public keys. Each pair or entry stored in the keystore is refered by a unique alias. In brief:
Keystore entry = private + public key
pair = identified by an alias
The keystore pr...