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Ruby on Rails: getting the max value from a DB column
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Dylan MarkowDylan Markow
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Detect Retina Display
...assume a device is running iOS4+ if the scale property exists, as the iPad 3.2 also contains this property.
On an iPad running iOS3.2, scale will return 1.0 in 1x mode, and 2.0 in 2x mode -- even though we know that device does not contain a Retina display. Apple changed this behavior in iOS4.2 for...
Using Caps Lock as Esc in Mac OS X
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396
Edit: As described in this answer, newer versions of MacOS now have native support for rebindi...
Which Eclipse files belong under version control?
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edited May 23 '17 at 12:02
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111 silver badge
answered Dec 3 '08 at 14:36
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Display open transactions in MySQL
...L docs: http://dev.mysql.com/doc/refman/5.0/en/mysql-tips.html
4.5.1.6.3. Disabling mysql Auto-Reconnect
If the mysql client loses its connection to the server while sending a statement, it immediately and automatically tries to reconnect once to the server and send the statement again. How...
Style disabled button with CSS
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338
For the disabled buttons you can use the :disabled pseudo-element. It works for all the elemen...
AngularJS : What is a factory?
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edited May 23 '17 at 11:55
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111 silver badge
answered May 16 '13 at 20:12
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Should the .gradle folder be added to version control?
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edited Dec 18 '17 at 4:33
answered Jun 21 '13 at 23:41
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How to do associative array/hashing in JavaScript
...create key-to-value object maps with the following syntax:
var point = { x:3, y:2 };
point["x"] // returns 3
point.y // returns 2
You can iterate through an associative array using the for..in loop construct as follows
for(var key in Object.keys(dict)){
var value = dict[key];
/* use key/valu...
Print All JVM Flags
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Do not miss also -XX:+JVMCIPrintProperties for Graal JIT options.
Before dive into sources you...