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Rails: select unique values from a column
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Sergio TulentsevSergio Tulentsev
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Create and append dynamically
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239
Use the same process. You already have the variable iDiv which still refers to the original ele...
Toggle input disabled attribute using jQuery
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answered Feb 28 '12 at 20:43
ArneArne
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How do you use colspan and rowspan in HTML tables?
...gt;1</td>
<td>2</td>
<td>3</td>
<td>4</td>
</tr>
</tbody>
</table>
References:
td element.
th element.
tbody element.
thead element.
table element.
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How do I add an existing directory tree to a project in Visual Studio?
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Maria Ines Parnisari
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answered Dec 25 '08 at 3:25
GantGant
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What is the difference between a.getClass() and A.class in Java?
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163
I wouldn't compare them in terms of pros/cons since they have different purposes and there's sel...
What is the difference between GitHub and gist?
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359
GitHub is the entire site. Gists are a particular service offered on that site, namely code sn...
Bash script processing limited number of commands in parallel
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332
Use the wait built-in:
process1 &
process2 &
process3 &
process4 &
wait
proce...
Why does ('0' ? 'a' : 'b') behave different than ('0' == true ? 'a' : 'b') [duplicate]
...ill take place here. We can follow this in the specification, section 11.9.3, The Abstract Equality Comparison Algorithm.
The operands are denoted as x and y (x == y).
In our case, x is a string ('0') and y is a Boolean (true). Hence step 7 is executed:
If Type(y) is Boolean, return the resul...
default select option as blank
...ion>
<option>Option 2</option>
<option>Option 3</option>
</select>
-- select an option -- Will be displayed by default. But if you choose an option,you will not be able select it back.
You can also hide it using by adding an empty option
<option style=...