大约有 45,000 项符合查询结果(耗时:0.0861秒) [XML]

https://stackoverflow.com/ques... 

python list by value not by reference [duplicate]

...e. an assertion should fail) in a new question? Most likely, you're not modifying the list itself, but its elements. Create a deep copy if you want a new list whose elements are copies as well. – phihag May 28 '17 at 20:28 ...
https://stackoverflow.com/ques... 

What is recursion and when should I use it?

...ation which can eliminate some classes of stack overflow. Put succinctly: if a function's return expression is simply the result of a function call, then you don't need to add a new level onto the stack, you can reuse the current one for the function being called. Regrettably, few imperative langu...
https://stackoverflow.com/ques... 

What is the difference between `new Object()` and object literal notation?

What is the difference between this constructor-based syntax for creating an object: 11 Answers ...
https://stackoverflow.com/ques... 

Is jQuery “each()” function synchronous?

...urn false" information. var all_ok=true; $(selector).each(function(){ if(!validate($(this))){ all_ok=false; //this tells the outside world something went wrong return false; //this breaks the .each iterations, returning early } }); if(!all_ok){ alert('something went wron...
https://stackoverflow.com/ques... 

Fastest method of screen capturing on Windows

...e GDI, but I'm curious whether there are other ways to go about this, and, if there are, which incurs the least overhead? Speed is a priority. ...
https://stackoverflow.com/ques... 

Should I embed images as data/base64 in CSS or HTML

...page or style sheet get loaded. Base64 encoding bloats image sizes by 33%. If served in a gzipped resource, data: images are almost certainly going to be a terrible strain on the server's resources! Images are traditionally very CPU intensive to compress, with very little reduction in size. ...
https://stackoverflow.com/ques... 

Is there a command to undo git init?

... Thanks Mathew, but can you expound on "if you just inited it"- what if i've done some stuff since, a few commits etc, would simply removing this be a problem? – Yarin Jul 9 '10 at 12:23 ...
https://stackoverflow.com/ques... 

How do I UPDATE from a SELECT in SQL Server?

... If you are editing the the link between tables (SET Table.other_table_id = @NewValue) then change the ON statement to something like ON Table.id = @IdToEdit AND other_table.id = @NewValue – Trisped ...
https://stackoverflow.com/ques... 

angularJS: How to call child scope function in parent scope

... That's pretty cool! But, what if you don't (want to) know where the caller scope is (I mean in $scope.$parent or in $scope.$parent.$parent, etc)? Ah, yes: pass a callback in params! :) – user2173353 Jul 28 '14 at 11:...
https://stackoverflow.com/ques... 

What is the difference D3 datum vs. data?

Can someone please explain the difference between datum() and data() in D3.js? I see both being used and I am not sure why you should choose one over the other? ...