大约有 40,000 项符合查询结果(耗时:0.0594秒) [XML]

https://stackoverflow.com/ques... 

Specify width in *characters*

... lowercase letters. Width is a totally different issue.... Change your example above to <div> <span>1</span> 3 5 7 9 1 3 5 7 9 1 </div> and you will notice width and height of the span are different. For a font-size of 20px on Chrome the span is 12x22 px, where 20px...
https://stackoverflow.com/ques... 

How to reset postgres' primary key sequence when it falls out of sync?

... All issues solved and combined into a single query: SELECT setval('your_seq',(SELECT GREATEST(MAX(your_id)+1,nextval('your_seq'))-1 FROM your_table)) – Frunsi Oct 27 '13 at 17:34 ...
https://stackoverflow.com/ques... 

How to get the response of XMLHttpRequest?

...when XMLHttpRequest.readyState equals to XMLHttpRequest.DONE. Here's an example (not compatible with IE6/7). var xhr = new XMLHttpRequest(); xhr.onreadystatechange = function() { if (xhr.readyState == XMLHttpRequest.DONE) { alert(xhr.responseText); } } xhr.open('GET', 'http://examp...
https://stackoverflow.com/ques... 

How do I dump the data of some SQLite3 tables?

...d only the data, not the schema, of some SQLite3 tables of a database (not all the tables)? The dump should be in SQL format, as it should be easily re-entered into the database later and should be done from the command line. Something like ...
https://stackoverflow.com/ques... 

How to get start and end of day in Javascript?

... @MartynDavis when all is normal operation, usually about 0-2 ticks happen in between but it depends on how busy the cpu is so then it makes sense to do that if you are worried about 1 tick precision. – Jason Sebring ...
https://stackoverflow.com/ques... 

What is the “__v” field in Mongoose

... now, but I wanted something that I could put in the Schema directly so in all queries. – diosney Mar 24 '14 at 11:52 ...
https://stackoverflow.com/ques... 

What does enumerate() mean?

...ieving that; one using itertools.count() to do the counting, the other manually counting in a generator function: from itertools import count def enumerate(it, start=0): # return an iterator that adds a counter to each element of it return zip(count(start), it) and def enumerate(it, sta...
https://stackoverflow.com/ques... 

Clearing a string buffer/builder after loop

...only benefit of creating the SB outside is not losing the internal (potentially long) char[] of it. If in the first iterator it grew up enough, the second loop will not need to resize any char[]. But for getting the advantage the "clear method" will have to preserve the size of the internal array. s...
https://stackoverflow.com/ques... 

How can you find the height of text on an HTML canvas?

... UPDATE - for an example of this working, I used this technique in the Carota editor. Following on from ellisbben's answer, here is an enhanced version to get the ascent and descent from the baseline, i.e. same as tmAscent and tmDescent return...
https://stackoverflow.com/ques... 

Quickly find whether a value is present in a C array?

...ned assembly language. I tend to take the path of least resistance - for small routines like this, I just write asm code and have a good idea how many cycles it will take to execute. You may be able to fiddle with the C code and get the compiler to generate good output, but you may end up wasting lo...