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How to fire AJAX request Periodically?
... the page after every 5 seconds. But I want to do it using jQuery and AJAX call. Is it possible?
4 Answers
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Getting “Lock wait timeout exceeded; try restarting transaction” even though I'm not using a transac
...tion; autocommit does not disable transactions, it just makes them automatically commit at the end of the statement.
What is happening is, some other thread is holding a record lock on some record (you're updating every record in the table!) for too long, and your thread is being timed out.
You ca...
How do I associate a Vagrant project directory with an existing VirtualBox VM?
...llowing path:
cd .vagrant/machines/default/virtualbox
3) Create a file called id with the ID of your VM xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
4) Save the file and run vagrant up
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Chrome Extension Message passing: response not sent
... will keep the message channel open to the other end until sendResponse is called).
So you just need to add return true; after the call to getUrls to indicate that you'll call the response function asynchronously.
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Difference between Key, Primary Key, Unique Key and Index in MySQL
... would use indexes to improve the speed of data retrieval. An index is typically created on columns used in JOIN, WHERE, and ORDER BY clauses.
Imagine you have a table called users and you want to search for all the users which have the last name 'Smith'. Without an index, the database would have ...
jquery if div id has children
... minor issue. don't mean to nitpick but children().length should be called instead of size() per jQuery docs here: api.jquery.com/size
– Brian Chavez
May 7 '11 at 5:06
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Entity Framework 4 - AddObject vs Attach
... objects that do not exist in the database. The entity will get an automatically generated temporary EntityKey and its
EntityState will be set to Added. When SaveChanges is called, it will be clear to the EF that this entity needs to be inserted into the database.
ObjectContext.Attach and ObjectSe...
Django: Get list of model fields?
...or this model. For example, phone_number = CharField(max_length=20) . Basically, I want to retrieve anything that inherits from the Field class.
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Use didSelectRowAtIndexPath or prepareForSegue method for UITableView?
...PathForSelectedRow() contains the correct value when prepareFroSegue... is called: tableView(_:didSelectrowAtIndexPath:) isn't called until later.
– Nicolas Miari
Jun 7 '16 at 2:21
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Set the selected index of a Dropdown using jQuery
...so be a useful fix/workaround for people who are changing the selection by calling prop('selectedIndex', ...), rather than val(...). Perhaps the problem was that you're listening for a change event, and THAT's what wasn't working for you? It's true that simply changing the property is not going to f...