大约有 44,000 项符合查询结果（耗时：0.0867秒） [XML]
Difference between knockout View Models declared as object literals vs functions
...s to set a variable in the function equal to the appropriate value of this and use it instead. This would be like:
var ViewModel = function() {
var self = this;
this.items = ko.observableArray();
this.removeItem = function(item) {
self.items.remove(item);
}
};
Now, if yo...
How do I check that multiple keys are in a dict in a single pass?
... +1, I like this better than Greg's answer because it's more concise AND faster (no building of irrelevant temporary list, AND full exploitation of short-circuiting).
– Alex Martelli
Aug 17 '09 at 2:34
...
Prevent scroll-bar from adding-up to the Width of page on Chrome
...
You can get the scrollbar size and then apply a margin to the container.
Something like this:
var checkScrollBars = function(){
var b = $('body');
var normalw = 0;
var scrollw = 0;
if(b.prop('scrollHeight')>b.height()){
normalw...
Center/Set Zoom of Map to cover all visible Markers?
I am setting multiple markers on my map and I can set statically the zoom levels and the center but what I want is, to cover all the markers and zoom as much as possible having all markets visible
...
How do I access the command history from IDLE?
On bash or Window's Command Prompt, we can press the up arrow on keyboard to get the last command, and edit it, and press ENTER again to see the result.
...
How to prevent Node.js from exiting while waiting for a callback?
... version, this may not happen til some part of the operation has completed and all the queues might empty before that occurs, allowing node to exit silently.
This is a sneaky bug, that is one that the module developer might not run into during development, as it will occur less often in busy system...
async await return Task
...e wrapped in Task, If you return int it will be wrapped in Task<int> and so on.
If your async method needs to return int you'd mark the return type of the method as Task<int> and you'll return plain int not the Task<int>. Compiler will convert the int to Task<int> for you.
...
?? Coalesce for empty string?
Something I find myself doing more and more is checking a string for empty (as in "" or null) and a conditional operator.
...
What is the best way to conditionally apply attributes in AngularJS?
...efix any attribute with ng-attr-, then the compiler will strip the prefix, and add the attribute with its value bound to the result of the angular expression from the original attribute value.
– Matthias
Nov 18 '13 at 21:37
...
Nullable vs. int? - Is there any difference?
Apparently Nullable<int> and int? are equivalent in value. Are there any reasons to choose one over the other?
5 ...