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Get checkbox value in jQuery
...o with the property of the checkbox, they are checking the attribute which means they are testing the initial state of the checkbox when it was loaded. So in short:
When you have the element and you know it is a checkbox you can simply read its property and you won't need jQuery for that (i.e. elem...
Ways to save enums in database
...Of course, ordering the cards by the numerical value of the enumeration is meaningless:
SELECT Suit FROM Cards
ORDER BY SuitID; --where SuitID is integer value(4,1,3,2,0)
Suit
------
Spade
Heart
Diamond
Club
Unknown
That's not the order we want - we want them in enumeration order:
SELECT Suit F...
MySQL ON DUPLICATE KEY - last insert id?
...tml
At the bottom of the page they explain how you can make LAST_INSERT_ID meaningful for updates by passing an expression to that MySQL function.
From the MySQL documentation example:
If a table contains an AUTO_INCREMENT column and INSERT ... UPDATE inserts a row, the LAST_INSERT_ID() functio...
Javascript : natural sort of alphanumerical strings
...e'. Tested in Chrome, Firefox, and IE11.
Here's an example. It returns 1, meaning 10 goes after 2:
'10'.localeCompare('2', undefined, {numeric: true, sensitivity: 'base'})
For performance when sorting large numbers of strings, the article says:
When comparing large numbers of strings, such ...
Foreign Key to non-primary key
... track of the same room, and a soft-delete field, like RM_Status, where 99 means 'deleted', and <> 99 means 'active'.
So when you create the first room, you insert RM_UID and RM_ApertureID as the same value as RM_UID.
Then, when you terminate the room to a date, and re-establish it with a n...
jQuery access input hidden value
...hidden#foo').val());
alert($('input:hidden[name=zyx]').val());
Those all mean the same thing in this example.
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Set selected option of select box
... is a very mildly edited version of Darin's demo, for an example of what I mean.
– Kenny Evitt
Aug 19 '14 at 17:51
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Insert into a MySQL table or update if exists
...) single row? Anyone else had this result? (The data is updated correctly: meaning only 1 row is updated)
– Dimitry K
Feb 20 '14 at 15:17
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How to save an activity state using save instance state?
...le, so a new instance must be created. This is the fundamental problem; it means one cannot rely on existence of bundle, and must do some alternative means of persistent storage. The benefit of onSave/onRestoreInstanceState is that it is a mechanism the system can do abruptly, without consuming much...
How to combine class and ID in CSS selector?
... are descendants of the element with an ID of header.
And #header.callout means:
Select the element which has an ID of header and also a class name of callout.
You can read more here css tricks
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