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What is offsetHeight, clientHeight, scrollHeight?
...ent in pixels, including padding but not the horizontal scrollbar height, border, or margin
offsetHeight:
is a measurement which includes the element borders, the element vertical padding, the element horizontal scrollbar (if present, if rendered) and the element CSS height.
scrollHeight:
...
Pandas selecting by label sometimes return Series, sometimes returns DataFrame
...ow that a DataFrame instance has certain methods that have been crafted in order to control the way data are extracted from rows and columns.
The ways these extracting methods work are described in this page:
http://pandas.pydata.org/pandas-docs/stable/indexing.html#indexing
We find in it the m...
How can I find non-ASCII characters in MySQL?
...mported from Excel . The data contains non- ASCII characters (em dashes, etc.) as well as hidden carriage returns or line feeds. Is there a way to find these records using MySQL?
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How do I convert an enum to a list in C#? [duplicate]
...
Awesome. Just realized that the ordering of the list can be specified by the 'value' of the enums. Ex: enum Foo { A = 1, B = 2, D = 4, C = 3, } => Once this is ran thru the GetValue and Cast, then the order is A, B, C, D. Fantastic!
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Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
... Add column with default value
2) THEN: Remove default value
add_column :orders, :items, :integer, null: false, default: 0
change_column :orders, :items, :integer, default: nil
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Postgresql SELECT if string contains
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shouldn't be the order of aaaa and tag_name reversed? i mean that you should put a column name after where
– user151496
May 11 '15 at 15:10
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what is the use of xsi:schemaLocation?
... read the schemaLocation values and try to load them from the internet, in order to validate the XML file. Spring, in turn, intercepts those load requests and serves up versions from inside its own JAR files.
If you omit the schemaLocation, then the XML parser won't know where to get the schema in ...
How to use if - else structure in a batch file?
...le2%"))
Processing sequence of batch commands depends on CMD.exe parsing order. Just make sure your construct follows that logical order, and as a rule it will work. If your batch script is processed by Cmd.exe without errors, it means this is the correct (i.e. supported by your OS Cmd.exe version...
What is an ORM, how does it work, and how should I use one? [closed]
...bases but the most popular is relational ( you know tables, columns, pk fk etc eg Oracle MySQL, MS-SQL )
And finally the Mapping part is where you do a bridge between your objects and your tables.
In applications where you don't use a ORM framework you do this by hand. Using an ORM framework wou...
How to fix the flickering in User controls
...d accessing their DoubleBuffered property and then we change it to true in order to make each control on the form double buffered. The reason we do reflection here, is because imagine you have a control that has child controls that are not accessible, that way, even if they're private controls, we'l...