大约有 41,300 项符合查询结果（耗时：0.0487秒） [XML]
git status shows modifications, git checkout — doesn't remove them
...
23 Answers
23
Active
...
How can I remove a key and its value from an associative array?
...
381
You can use unset:
unset($array['key-here']);
Example:
$array = array("key1" => "value1...
MongoDB: update every document on one field
... document. In the Mongo shell, or with any MongoDB client:
$version >= 3.2:
db.foo.updateMany( {}, <update> )
{} is the condition (the empty condition matches any document)
3.2 > $version >= 2.2:
db.foo.update( {}, <update>, { multi: true } )
{} is the condition (the ...
Why does Maven have such a bad rep? [closed]
...
134
To those who understand Maven, no explanation is necessary. To those who don't, no explanation is possible.
– Apocali...
How to define hash tables in Bash?
...
993
Bash 4
Bash 4 natively supports this feature. Make sure your script's hashbang is #!/usr/bin/e...
How do I make an attributed string using Swift?
...ingle.rawValue ]
let myShadow = NSShadow()
myShadow.shadowBlurRadius = 3
myShadow.shadowOffset = CGSize(width: 3, height: 3)
myShadow.shadowColor = UIColor.gray
let myAttribute = [ NSAttributedString.Key.shadow: myShadow ]
The rest of this post gives more detail for those who are interested.
...
How do I git rebase the first commit?
...base to go back and amend my first commit, but if I do git rebase -i HEAD~3 it complains! If I try the same with HEAD~2 then it kinda works but only lets me rearrange the last two commits.
...
What is a pre-revprop-change hook in SVN, and how do I create it?
...
answered Oct 13 '08 at 10:54
PW.PW.
3,6812828 silver badges3434 bronze badges
...
How do I combine two data frames?
...
153
I believe you can use the append method
bigdata = data1.append(data2, ignore_index=True)
to k...
How can I modify the size of column in a MySQL table?
I have created a table and accidentally put varchar length as 300 instead of 65353 . How can I fix that?
2 Answers
...