大约有 40,000 项符合查询结果（耗时：0.0483秒） [XML]
What's the better (cleaner) way to ignore output in PowerShell? [closed]
...000 object pipeline.
## Control Pipeline
Measure-Command {$(1..1000) | ?{$_ -is [int]}}
TotalMilliseconds : 119.3823
## Out-Null
Measure-Command {$(1..1000) | ?{$_ -is [int]} | Out-Null}
TotalMilliseconds : 190.2193
## Redirect to $null
Measure-Command {$(1..1000) | ?{$_ -is [int]} > $null}
...
Django : How can I see a list of urlpatterns?
...to install django-extensions, add it to your settings like this:
INSTALLED_APPS = (
...
'django_extensions',
...
)
And then, run this command in your terminal
./manage.py show_urls
For more information you can check the documentation.
...
jQuery: Select data attributes that aren't empty?
...his Code Snippet.
* Snippet is running jQuery v2.1.1
jQuery('div.test_1 > a[href]').addClass('match');
jQuery('div.test_2 > a[href!=""]').addClass('match');
jQuery('div.test_3 > a[href!=""][href]').addClass('match');
div,a {
display: block;
color: #333;
margin: 5px;
...
How to save an image locally using Python whose URL address I already know?
...wered Nov 27 '11 at 15:01
Liquid_FireLiquid_Fire
6,01522 gold badges2121 silver badges2222 bronze badges
...
How do you delete an ActiveRecord object?
...
It's destroy and destroy_all methods, like
user.destroy
User.find(15).destroy
User.destroy(15)
User.where(age: 20).destroy_all
User.destroy_all(age: 20)
Alternatively you can use delete and delete_all which won't enforce :before_destroy and :afte...
Advances social tools app with cool UI - Koded Apps - Kodular Community
...ash {
display: none;
}
// This script is inlined in `_discourse_splash.html.erb
const DELAY_TARGET = 2000;
const POLLING_INTERVAL = 50;
const splashSvgTemplate = document.querySelector(".splash-svg-template");
const splashTemplateClone = splashSvgTemplate.content.cloneNode(true...
Circular gradient in android
...ource with a px or dp value, like: android:gradientRadius="@dimen/gradient_radius"
– Bolling
Mar 3 '15 at 21:20
2
...
libxml/tree.h no such file or directory
...ude/libxml2" to the Header Search Path (XCode 4.2), than it says that " "_OBJC_METACLASS_$_UIResponder", referenced from: _OBJC_METACLASS_$_D2GAppDelegate in MyDemoAppDelegate.o ld: symbol(s) not found for architecture i386". What can i do?
– NicTesla
A...
Draw line in UIView
...Path(context); before CGContextMoveToPoint(...);?
– i_am_jorf
Nov 9 '11 at 18:38
37
Using a view ...
How to exit a function in bash
...he entire shell.
# So we (ab)use a different feature. :)
fail() { : "${__fail_fast:?$1}"; }
nested-func() {
try-this || fail "This didn't work"
try-that || fail "That didn't work"
}
nested-func
}
Trying it out:
$ do-something-complex
try-this: command not found
bash: __fail...