大约有 40,000 项符合查询结果（耗时：0.0535秒） [XML]
Dynamically select data frame columns using $ and a character value
...3 = sample(5,10,repl=T) )
# We want to sort by 'col3' then by 'col1'
sort_list <- c("col3","col1")
# Use 'do.call' to call order. Seccond argument in do.call is a list of arguments
# to pass to the first argument, in this case 'order'.
# Since a data.frame is really a list, we just subset ...
How to tell if a file is git tracked (by shell exit code)?
...er up your console with error messages, you can also run
git ls-files file_name
and then check the result. If git returns nothing, then the file is not tracked. If it's tracked, git will return the file path.
This comes in handy if you want to combine it in a script, for example PowerShell:
$gi...
Can you use if/else conditions in CSS?
...at looks something like this:
p {
background-position: <?php echo (@$_GET['foo'] == 'bar')? "150" : "4"; ?>px 8px;
}
In this case, you will however have a performance impact, since caching such a stylesheet will be difficult.
...
How To Accept a File POST
... }
string root = System.Web.HttpContext.Current.Server.MapPath("~/App_Data/uploads");
var provider = new MultipartFormDataStreamProvider(root);
var task = request.Content.ReadAsMultipartAsync(provider).
ContinueWith<HttpResponseMessage>(o =>
{
string...
How do I update my forked repo using SourceTree?
...hen select "master" there before I could hit OK.
– am_
Mar 13 '15 at 17:00
A more elaborate summary of this is at this...
Comparing two CGRects
...
in fact, equalTo(_:) is now deprecated so == is preferred.
– olx
May 9 '18 at 5:51
...
With ng-bind-html-unsafe removed, how do I inject HTML?
...example, load it from https://ajax.googleapis.com/ajax/libs/angularjs/[LAST_VERSION]/angular-sanitize.min.js
you need to include ngSanitize module on your app
eg: var app = angular.module('myApp', ['ngSanitize']);
you just need to bind with ng-bind-html the original html content. No need to do anyth...
jQuery's .click - pass parameters to user function
...e this...
$("some selector").click({param1: "Hello", param2: "World"}, cool_function);
// in your function, just grab the event object and go crazy...
function cool_function(event){
alert(event.data.param1);
alert(event.data.param2);
}
I know it's late in the game for this question, but t...
Right HTTP status code to wrong input
...
For me link (fb-developers.info/tech/fb_dev/faq/general/gen_10.html) leads to a random ad. I think the domain was spoofed
– dmitry502
Jun 29 at 8:39
...
How to override toString() properly in Java?
...
that's more elegant
– esQmo_
Oct 20 '19 at 20:56
add a comment
|
...