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How can I add “href” attribute to a link dynamically using JavaScript?
...one you can use without having to setAttribute. Another example is the <table> element (HTMLTableElement) where you can use insertRow() to insert new rows without having to create the <tr> and append it to the table.
– Thai
Jan 14 '11 at 9:00
...
Hidden features of HTML
...
The contentEditable property for (IE, Firefox, and Safari)
<table>
<tr>
<td><div contenteditable="true">This text can be edited<div></td>
<td><div contenteditable="true">Thi...
Combine two ActiveRecord::Relation objects
...ny odd situations, by using Rails' built-in Arel.
User.where(
User.arel_table[:first_name].eq('Tobias').or(
User.arel_table[:last_name].eq('Fünke')
)
)
This merges both ActiveRecord relations by using Arel's or.
Merge, as was suggested here, didn't work for me. It dropped the 2nd set...
Is it possible to set a number to NaN or infinity?
...'t standard-library but a very common third-party library).
The following table summarizes the ways how one can create a not-a-number or a positive or negative infinity float:
╒══════════╤══════════════╤═════════════...
When to use Vanilla JavaScript vs. jQuery?
... against an <option> to get its text content
this.rows against a <table> to get a collection of <tr> elements
this.cells against a <tr> to get its cells (td & th)
this.parentNode to get a direct parent
this.checked to get the checked state of a checkbox Thanks @Tim Down
t...
Is < faster than
...is "borrowed" bit was usually referred to as the carry bit and would be testable by a branch instruction. A second bit called the zero bit would be set if the subtraction were identically zero which implied equality.
There were usually at least two conditional branch instructions, one to branch on ...
What's the difference between session.persist() and session.save() in Hibernate?
... does not cascade to the child, i.e., only Parent is saved/inserted in the table. However, persist accomplished the task of saving both Parent and Child in one call. I am using a composite ID not a generated ID.
– arn-arn
Aug 11 '16 at 14:05
...
How do I get currency exchange rates via an API such as Google Finance? [closed]
...ZD", "USDPHP", "USDSGD", "USDTHB", "USDZAR", "USDISK")&env=store://datatables.org/alltableswithkeys][1]
Here is the YQL query builder, where you can test a query and copy the url: (NO LONGER AVAILABLE)
http://developer.yahoo.com/yql/console/?q=show%20tables&env=store://datatables.org/alltabl...
Rails: FATAL - Peer authentication failed for user (PG::Error)
...tly by creating a database and assigning ownership to your app's user to establish the connection. To create a new user in postgresql 9 run:
sudo -u postgres psql
set the postgresql user password if you haven't, it's just backslash password.
postgres=# \password
Create a new user and password ...
Where and how is the _ViewStart.cshtml layout file linked?
...ing on what type of device is accessing the site –
and have a phone or tablet optimized layout for those devices, and a
desktop optimized layout for PCs/Laptops. Or if we were building a
CMS system or common shared app that is used across multiple customers
we could select different layou...