大约有 43,000 项符合查询结果(耗时:0.0525秒) [XML]

https://stackoverflow.com/ques... 

Opening Android Settings programmatically

... to open the settings into the new option: "Control which applications can read your notifications" (added in API 18)? – Javi Mar 5 '14 at 17:04 add a comment ...
https://stackoverflow.com/ques... 

How do I check whether a jQuery element is in the DOM?

... There is a pure-DOM way to do this, which is syntactically more readable, and I imagine very similar in terms of performance: document.contains($foo[0]) – Joel Cross Dec 1 '15 at 10:16 ...
https://stackoverflow.com/ques... 

How to remove the last character from a string?

... @SSpoke it's the same thing, yours is just a little nicer to read :) – Marko Jun 26 '14 at 8:41 6 ...
https://stackoverflow.com/ques... 

Execute command without keeping it in history [closed]

...le to /dev/null will be logged to the history file, yet this entry will be readily deleted and no traces (at least in the history file) will be shown. Also, this is non-permanent. share | improve t...
https://stackoverflow.com/ques... 

convert a JavaScript string variable to decimal/money

... To quote @PhilipWhitehouse "Please, to anyone reading this in the future, do not use float to store currency. You will loose precision and data. You should store it as a integer number of cents (or pennies etc.) and then convert prior to output.". Source: stackoverflow.c...
https://stackoverflow.com/ques... 

javascript check for not null

...faux-pas. It is really the equivalent of if(val), which is much clearer to read. I would stick to that (fyi Ujwal, !!val should technically work in C or C++ also) see here for javascript 'truthiness' values: janosch.woschitz.org/javascript-equality-comparison – Will Buck ...
https://stackoverflow.com/ques... 

What does Java option -Xmx stand for? [duplicate]

...; set maximum Java heap size -Xss<size> set java thread stack size -Xprof output cpu profiling data -Xfuture enable strictest checks, anticipating future default -Xrs reduce use of OS signals by Java/VM (see documentation) -Xch...
https://stackoverflow.com/ques... 

Initial size for the ArrayList

...nd the initial capacity in a single constructor call. You sort of have to read through the api and say "Oh, I guess ArrayList does not have a method or constructor to do that" – demongolem May 27 '12 at 20:00 ...
https://stackoverflow.com/ques... 

What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?

...ence', 1) INSERT INTO post_comment (post_id, review, id) VALUES (2, 'Must-read for Java developers', 2) INSERT INTO post_comment (post_id, review, id) VALUES (3, 'Five Stars', 3) INSERT INTO post_comment (post_id, review, id) VALUES (4, 'A great reference book', 4) N+1 query problem with plain ...
https://stackoverflow.com/ques... 

copying all contents of folder to another folder using batch file?

...nding slash like "C:\My Folder\" you may get a nasty surprise. I recommend reading that SS64 page very carefully. For a full trip down the "what is an escape character in CMD" rabbit hole, see Escaping Double Quotes in Batch Script. – jrh Mar 12 '19 at 19:31 ...