大约有 831 项符合查询结果（耗时：0.0437秒） [XML]
How to 'minify' Javascript code
...Each)
use the function arguments as placeholder (in some cases)
remove unneccessary "{}","()",";",spaces,newlines
Use the minifier
Now if a minifier can compress the code your doing it wrong.
No minifier can compress properly a bad code.
DIY
function myFunction(a,b,c){
for(b=[],c={};a--;)b[a]...
How to find duplicates in 2 columns not 1
...icates.
You can read more about eh ALTER IGNORE here: http://mediakey.dk/~cc/mysql-remove-duplicate-entries/
Update: I was informed by @Inquisitive that this may fail in versions of MySql> 5.5 :
It fails On MySQL > 5.5 and on InnoDB table, and in Percona because of
their InnoDB fast in...
Android 4.3 Bluetooth Low Energy unstable
...ced that after I connect a device for the first time I am rarely able to successfully connect to / communicate with that device or any other device again.
...
Go build: “Cannot find package” (even though GOPATH is set)
...
Although the accepted answer is still correct about needing to match directories with package names, you really need to migrate to using Go modules instead of using GOPATH. New users who encounter this problem may be confused about the men...
SVG Positioning
...rect x="10" y="10" height="100" width="100" style="stroke:#009900;fill: #00cc00"/>
</svg>
</svg>
The two rectangles are identical (apart from the colors), but the parent svg elements have different x values.
See http://tutorials.jenkov.com/svg/svg-element.html.
...
Can someone copyright a SQL query? [closed]
..., thn there's the problem of the code written automatically released under CC-Wiki, unless whever waives that...
– RCIX
Dec 4 '09 at 7:17
7
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Changing CSS Values with Javascript
...hing like this:
var cssRuleCode = document.all ? 'rules' : 'cssRules'; //account for IE and FF
var rule = document.styleSheets[styleIndex][cssRuleCode][ruleIndex];
var selector = rule.selectorText; //maybe '#tId'
var value = rule.value; //both selectorText and value are settable.
Let ...
“new” keyword in Scala
...apply() = 7
}
// These do different things
> println(new Foo)
test@5c79cc94
> println(Foo())
7
And, since you mentioned Java classes: yes -- Java classes rarely have
companion objects with an apply method, so you must use new and the actual
class's constructor.
...
How do I create a unique constraint that also allows nulls?
...
SQL Server 2008 +
You can create a unique index that accept multiple NULLs with a WHERE clause. See the answer below.
Prior to SQL Server 2008
You cannot create a UNIQUE constraint and allow NULLs. You need set a default value of NEWID().
Update the existing values to NEWID(...
How to track untracked content?
...
This saved my ass so much the other day. I had accidentally added something with a .git directory in it to my git repo, and then git kinda-sorta thought it had a submodule, which was causing my git svn dcommits to freak out. I would upvote you 3 times if I could.
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