大约有 24,000 项符合查询结果（耗时：0.1094秒） [XML]
What does %w(array) mean?
... #Same as :'some words'
%s[other words] #Same as :'other words'
%s_last example_ #Same as :'last example'
Since Ruby 2.0.0 you also have:
%i( a b c ) # => [ :a, :b, :c ]
%i[ a b c ] # => [ :a, :b, :c ]
%i_ a b c _ # => [ :a, :b, :c ]
# etc...
...
How do I run a Ruby file in a Rails environment?
...ou don't need to modify your script.
http://guides.rubyonrails.org/command_line.html#rails-runner
Just say rails runner script.rb
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What does -save-dev mean in npm install grunt --save-dev
...indicate in your package.json files:
Those packages that are required in order to use your module are listed under the "dependencies" property. Using npm you can add those dependencies to your package.json file this way:
npm install --save packageName
Those packages required in order to help dev...
Calling a function when ng-repeat has finished
... return function(data){
var me = this;
var flagProperty = '__finishedRendering__';
if(!data[flagProperty]){
Object.defineProperty(
data,
flagProperty,
{enumerable:false, configurable:true, writable: false, value:{}...
Installing PG gem on OS X - failure to build native extension
... postgresql 3. gem install pg 4. bundle install
– kai_onthereal
Jun 25 '19 at 5:42
...
LINQ .Any VS .Exists - What's the difference?
...0:00.0180018 Exists: 00:00:00.0090009"
With 500k, (I also flipped around order in which they get evaluated to see if there is no additional operation associated with whichever runs first.)
" Exists: 00:00:00.0050005 Any: 00:00:00.0100010"
With 100k records
" Exists: 00:00:00.0010001 Any:...
Why can't I assign a *Struct to an *Interface?
... var pi *Interface
pi = new(Interface)
*pi = ps
_, _ = pi, ps
}
Compiles OK. See also here.
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How to scroll to specific item using jQuery?
...ple. No plugins needed.
var $container = $('div'),
$scrollTo = $('#row_8');
$container.scrollTop(
$scrollTo.offset().top - $container.offset().top + $container.scrollTop()
);
// Or you can animate the scrolling:
$container.animate({
scrollTop: $scrollTo.offset().top - $container.offse...
How ViewBag in ASP.NET MVC works
...
public dynamic ViewBag
{
get
{
if (_viewBag == null)
{
_viewBag = new DynamicViewData(() => ViewData);
}
return _viewBag;
}
}
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How to set up Spark on Windows?
.../docs/latest/building-spark.html
Download and install Maven, and set MAVEN_OPTS to the value specified in the guide.
But if you're just playing around with Spark, and don't actually need it to run on Windows for any other reason that your own machine is running Windows, I'd strongly suggest you in...