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How to find if div with specific id exists in jQuery?
...t matched any elements, like this:
if($("#" + name).length == 0) {
//it doesn't exist
}
The full version:
$("li.friend").live('click', function(){
name = $(this).text();
if($("#" + name).length == 0) {
$("div#chatbar").append("<div class='labels'><div id='" + name + "' style='...
How to reset sequence in postgres and fill id column with new data?
...ssign id column with new values (1, 2, 3, 4... etc...). Is any easy way to do that?
13 Answers
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How to grab substring before a specified character jQuery or JavaScript
I am trying to extract everything before the ',' comma. How do I do this in JavaScript or jQuery? I tried this and not working..
...
Java HTTPS client certificate authentication
... OpenSSL, not version 0.9.8h because that seems to suffer from a bug which doesn't allow you to properly generate PKCS#12 files.
This PKCS#12 file will be used by the Java client to present the client certificate to the server when the server has explicitly requested the client to authenticate. See...
Difference between Service, Async Task & Thread?
...en Service, Async Task & Thread. If i am not wrong all of them are used to do some stuff in background. So, how to decide which to use and when?
...
csv.Error: iterator should return strings, not bytes
...flag rt (read, text) is the default, so, using the context manager, simply do this:
with open('sample.csv') as ifile:
read = csv.reader(ifile)
for row in read:
print (row)
The context manager means you don't need generic error handling (without which you may get stuck with the ...
How to kill zombie process
...ombie (note that this is extremely crude and might kill processes that you do not intend. I do not recommend using this sort of sledge hammer):
# Don't do this. Incredibly risky sledge hammer!
kill $(ps -A -ostat,ppid | awk '/[zZ]/ && !a[$2]++ {print $2}')
...
Delete first character of a string in Javascript
... type coercion performed, and the algorithm ends up being identical. But I do prefer === over == even when it doesn't make a difference. ;)
– user113716
Oct 17 '11 at 21:32
4
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Redirecting to URL in Flask
I'm new to Python and Flask and I'm trying to do the equivalent of Response.redirect as in C# - ie: redirect to a specific URL - how do I go about this?
...
Moment JS - check if a date is today or in the future
...
After reading the documentation: http://momentjs.com/docs/#/displaying/difference/, you have to consider the diff function like a minus operator.
// today < future (31/01/2014)
today.diff(future) // today - future < 0...