大约有 40,000 项符合查询结果（耗时：0.0522秒） [XML]
how to convert binary string to decimal?
...
parseInt() with radix is a best solution (as was told by many):
But if you want to implement it without parseInt, here is an implementation:
function bin2dec(num){
return num.split('').reverse().reduce(function(x, y, i){
return (y === '1') ? x + Math.pow(2, i) : x;...
jquery select change event get selected option
...with this.options[ this.options.selectedIndex ]. Mozilla says is supported by Firefox from 26, IE No support.
– Bernhard Döbler
Dec 14 '16 at 8:36
add a comment
...
How to check if a json key exists?
...uld also
use optString instead of getString:
Returns the value mapped by name if it exists, coercing it if
necessary. Returns the empty string if no such mapping exists
share
|
improve this ...
git-svn not a git command?
...
I had the same error under Cygwin 1.7. It was solved by installing the git-svn package with Cygwin setup.
share
|
improve this answer
|
follow
...
The way to check a HDFS directory's size?
... than the individual files. Without the -s option, the calculation is done by going 1-level deep from the given path.
The -h option will format file sizes in a human-readable fashion (e.g 64.0m instead of 67108864)
The -v option will display the names of columns as a header line.
The -x option will ...
iphone: Where the .dSYM file is located in crash report
... have build you project for a real device, you can also find the dSYM file by the following way:
Go to Project Navigator, and find Products folder
Right click the app, and choose Show in Finder.
Make sure that the app is in black color, not red. Because red color means that you have not build...
Django DB Settings 'Improperly Configured' Error
...'t quite clear to me in the documentation, or maybe I read it & forgot by the time I needed to do it.
– Zamphatta
Mar 24 '13 at 0:13
6
...
How to define multiple CSS attributes in jQuery?
...
erm, thanks to all the drive-by downvoters who never read jquery documentation? numeric values are converted into pixel values automatically kthx.
– Jimmy
Jan 15 '09 at 21:10
...
Finding out the name of the original repository you cloned from in Git
...anization and repo name.
Something like github/scientist would be matched by the character class [[:graph:]] in the regular expression.
The \1 tells sed to replace everything with just the matched characters.
share
...
How would you make a comma-separated string from a list of strings?
...
Note if you are using python 2.7 (which you shouldn't by now) then using str will raise an exception if any item in the list has unicode.
– kroiz
May 26 at 13:54
...