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Delete sql rows where IDs do not have a match from another table
...ier - "wrong" is a bit strong. To make sure people understand, the answers do work if fileidis non-nullable. Also, the third solution (NOT IN) only requires that f.id by non-nullable. Presumably that is a primary key, so it would be.
– ToolmakerSteve
Sep 26 '16...
How do I make an HTML text box show a hint when empty?
... Internet Explorer only added support in 10. If you target a browser that does not support input placeholders, you can use a jQuery plugin called jQuery HTML5 Placeholder, and then just add the following JavaScript code to enable it.
$('input[placeholder], textarea[placeholder]').placeholder();
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Replace a value in a data frame based on a conditional (`if`) statement
...e so much easier when working with factors. +1
– Brandon Bertelsen
Apr 28 '11 at 22:38
4
what if ...
HTML5 Number Input - Always show 2 decimal places
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step='0.01' does not work for me on Chrome 66.0 parseFloat works like a charm. robot_speed = parseFloat(robot_speed).toFixed(2)
– 05032 Mendicant Bias
Aug 14 '19 at 14:52
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What are the main disadvantages of Java Server Faces 2.0?
...dvantages? Honestly, apart from the relative steep learning curve when you don't have a solid background knowledge about basic Web Development (HTML/CSS/JS, server side versus client side, etc) and the basic Java Servlet API (request/response/session, forwarding/redirecting, etc), no serious disadva...
How do you return from 'gf' in Vim
I am using Vim for windows installed in Unix mode. Thanks to this site I now use the gf command to go to a file under the cursor.
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How to correct indentation in IntelliJ
...e comments are also indented to the same level as the code, you can simply do as follows:
(example for JavaScript)
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How do I change bash history completion to complete what's already on the line?
...ard'
fi
(the if statement checks for interactive mode)
Normally, Up and Down are bound to the Readline functions previous-history and next-history respectively. I prefer to bind PgUp/PgDn to these functions, instead of displacing the normal operation of Up/Down.
# ~/.inputrc
"\e[5~": history-s...
Python int to binary string?
...ke a format spec.
>>> "{0:b}".format(37)
'100101'
Format spec docs for Python 2
Format spec docs for Python 3
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Windows recursive grep command-line
I need to do a recursive grep in Windows, something like this in Unix/Linux:
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