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What's the difference between `on` and `live` or `bind`?
...*/ $(".foo").on("click", handler);
Use on like delegate (event delegation rooted in a given element):
/* Old: */ $("#container").delegate(".foo", "click", handler);
/* New: */ $("#container").on("click", ".foo", handler);
Use on like live (event delegation rooted in the document):
/* Old: */ $("...
Data binding to SelectedItem in a WPF Treeview
...e namespace declaration):
<TreeView ItemsSource="{Binding Path=Root.Children}" local:TreeViewHelper.SelectedItem="{Binding Path=SelectedItem, Mode=TwoWay}">
</TreeView>
Now you can bind the selected item, and also set it in your view model to change it programmatically, s...
How to reset a single table in rails?
...ipes all data and resets the autoincrement counters in the table. Works in MySQL and Postgres, does not work in Sqlite.
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Difference between jQuery parent(), parents() and closest() functions
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Begins with the parent element
Travels up the DOM tree to the document's root element, adding each
ancestor element to a temporary collection; it then filters that
collection based on a selector if one is supplied
The returned jQuery object contains zero, one, or multiple elements
.parent()
Give...
CSS: 100% font size - 100% of what?
...e "rem" instead of "em" to always scale a specific element relative to the root (html element, or browser default). Can be useful with a complex hierarchy of relatively-sized elements.
– Beejor
Aug 5 '16 at 1:16
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PostgreSQL query to list all table names?
...hema.tables
WHERE table_type='BASE TABLE'
AND table_schema='public';
For MySQL you would need table_schema='dbName' and for MSSQL remove that condition.
Notice that "only those tables and views are shown that the current user has access to". Also, if you have access to many databases and want to ...
Android - Pulling SQlite database android device
...droid v4 or above, you can pull app data, including it's database, without root by using adb backup command, then extract the backup file and access the sqlite database.
First backup app data to your PC via USB cable with the following command, replace app.package.name with the actual package name ...
How do I get list of all tables in a database using TSQL?
...ES
WHERE TABLE_TYPE = 'BASE TABLE'
AND TABLE_CATALOG='dbName' --(for MySql, use: TABLE_SCHEMA='dbName' )
PS: For SQL Server 2000:
SELECT * FROM sysobjects WHERE xtype='U'
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django syncdb and an updated model
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If you run Django with Apache and MySQL, restart apache after making migration with makemigrations.
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Django import error - no module named django.conf.urls.defaults
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Check also if you have set ROOT_URLCONF in your settings.py! This variable has to also be adapted. In my case it was ROOT_URLCONF = 'urls' and had to be changed to ROOT_URLCONF = 'app.urls'
– Lukas Schulze
Mar 10 ...