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How do you make an element “flash” in jQuery
...should probably put each subsequent fadeIn and fadeOut in their respective callbacks. For example: var $someElement = $("#someElement"); $someElement.fadeIn(100, function(){ $someElement.fadeOut(100, function(){ /*...etc...*/ }) })
– thekingoftruth
Sep...
Windows can't find the file on subprocess.call()
...
When the command is a shell built-in, add a 'shell=True' to the call.
E.g. for dir you would type:
import subprocess
subprocess.call('dir', shell=True)
To quote from the documentation:
The only time you need to specify shell=True on Windows is when the command you wish to execute ...
In Android, how do I set margins in dp programmatically?
... Correct, but no need to set it back, the changed params are automatically reflected. Thus you can remove the line: vector8.setLayoutParams(params);
– Wirsing
Nov 26 '14 at 9:59
...
How to get the element clicked (for the whole document)?
...
Good call. We've not upgraded to the most recent jQuery at my day job, so on slips my mind.
– JAAulde
Jan 26 '12 at 1:11
...
`static` keyword inside function?
...he value of the given variable ($has_run in your example) between multiple calls.
You could use this for different purposes, for example:
function doStuff() {
static $cache = null;
if ($cache === null) {
$cache = '%heavy database stuff or something%';
}
// code using $cache
}
In t...
How to use System.Net.HttpClient to post a complex type?
...ger work.
Instead, from this post, the ASP.NET team has included some new calls to support this functionality:
HttpClient.PostAsJsonAsync<T>(T value) sends “application/json”
HttpClient.PostAsXmlAsync<T>(T value) sends “application/xml”
So, the new code (from dunston) becomes...
What is the most efficient way to store tags in a database?
... even worry too much about performance at this stage of developement. It's called premature optimization.
However, I'd suggest that you'd include Tag_ID column in the Tags table. It's usually a good practice that every table has an ID column.
...
Rails has_and_belongs_to_many migration
...ant
t.belongs_to :user
end
end
end
t.belongs_to will automatically create the necessary indices. def change will auto detect a forward or rollback migration, no need for up/down.
Rails 5
create_join_table :restaurants, :users do |t|
t.index [:restaurant_id, :user_id]
end
Note: Th...
How to position a table at the center of div horizontally & vertically
...uto; /* or margin: 0 auto 0 auto */
}
</style>
To center it vertically, the only way is to use javascript:
var tableMarginTop = Math.round( (testHeight - tableHeight) / 2 );
$('table').css('margin-top', tableMarginTop) # with jQuery
$$('table')[0].setStyle('margin-top', tableMarginTop) # ...
Replace values in list using Python [duplicate]
...ent
else: yield item
Just pass any iterable (including the result of calling a generator) as the first arg, the predicate to decide if a value must be replaced as the second arg, and let 'er rip.
For example:
>>> list(replaceiniter(xrange(11), lambda x: x%2))
[0, None, 2, None, 4, N...