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Why does PostgreSQL perform sequential scan on indexed column?
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If the SELECT returns more than approximately 5-10% of all rows in the table, a sequential scan is much faster than an index scan.
This is because an index scan requires several IO operations for each row (look up the row in the index, then ret...
Google Maps API 3 - Custom marker color for default (dot) marker
... of creating markers is deprecated as of 14th March 2019. It won't work anymore: error502
– Jonny
Mar 19 '19 at 14:42
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Pipe output and capture exit status in Bash
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import .css file into .less file
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How to make HTML input tag only accept numerical values?
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for a more robust solution, also consider copy and paste can add letters to this example!
– Neil
Feb 17 '14 at 11:43
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Java EE web development, where do I start and what skills do I need? [closed]
...out JSP, Servlets, JSTL and EL where you can learn the essentials and find more useful links.
Tomcat seems to be a good web server for Java.
It is. It is however limited in capabilities. It's basically a barebones servlet container, implementing only the JSP/Servlet parts of the huge Java EE API....
Using Caps Lock as Esc in Mac OS X
...t work immediately, you may need to restart your machine.
Impressed? Want More Control?
You may also want to check out KeyRemap4MacBook which is actually the flagship keyboard remapping tool from pqrs.org - it's also free.
If you like these tools you can make a donation. I have no affiliation wit...
How to get the mouse position without events (without moving the mouse)?
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How to pass a function as a parameter in Java? [duplicate]
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I would need a much more simpler solution. Can anyone help?
– TomeeNS
Jan 3 '14 at 0:27
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How to trim a string to N chars in Javascript?
...e starting point. The second argument (7) is the ending point (exclusive). More info here.
var string = "this is a string";
var length = 7;
var trimmedString = string.substring(0, length);
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