大约有 48,000 项符合查询结果（耗时：0.0764秒） [XML]
File extension for PowerShell 3
...dMike Shepard
15.2k66 gold badges4545 silver badges6060 bronze badges
10
...
How do you delete an ActiveRecord object?
...like
user.destroy
User.find(15).destroy
User.destroy(15)
User.where(age: 20).destroy_all
User.destroy_all(age: 20)
Alternatively you can use delete and delete_all which won't enforce :before_destroy and :after_destroy callbacks or any dependent association options.
User.delete_all(condition: ...
Gradient of n colors ranging from color 1 and color 2
...friend here:
colfunc <- colorRampPalette(c("black", "white"))
colfunc(10)
# [1] "#000000" "#1C1C1C" "#383838" "#555555" "#717171" "#8D8D8D" "#AAAAAA"
# [8] "#C6C6C6" "#E2E2E2" "#FFFFFF"
And just to show it works:
plot(rep(1,10),col=colfunc(10),pch=19,cex=3)
...
MySQL SELECT WHERE datetime matches day (and not necessarily time)
...wing 4 records, then only the 2nd and 3rd would be returned if I limit to 2012-12-25.
4 Answers
...
How can I scale an entire web page with CSS?
...{
zoom: 3;
-moz-transform: scale(3);
-moz-transform-origin: 0 0;
}
share
|
improve this answer
|
follow
|
...
git undo all uncommitted or unsaved changes
...
1704
This will unstage all files you might have staged with git add:
git reset
This will revert a...
JavaScript replace/regex
...
|
edited Jul 22 '09 at 2:43
answered Jul 22 '09 at 1:02
...
Why does git revert complain about a missing -m option?
...
CB BaileyCB Bailey
610k9090 gold badges596596 silver badges628628 bronze badges
...
git shallow clone (clone --depth) misses remote branches
... shallow-description in the technical documentation, a "git-clone --depth 20 repo [...] result[s in] commit chains with a length of at most 20." A shallow clone therefore should contain the requested depth of commits, from the tip of a branch.
As - in addition - the documentation of git clone for t...
Can clearInterval() be called inside setInterval()?
...
Yes you can. You can even test it:
var i = 0;
var timer = setInterval(function() {
console.log(++i);
if (i === 5) clearInterval(timer);
console.log('post-interval'); //this will still run after clearing
}, 200);
In this example, this timer clears whe...