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Can I make the foreign key field optional in Django model
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Android emulator shows nothing except black screen and adb devices shows “device offline”
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31 Answers
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Changing password with Oracle SQL Developer
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How can I check if a key is pressed during the click event with jQuery?
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174
You can easily detect the shift, alt and control keys from the event properties;
$("button")....
How to output messages to the Eclipse console when developing for Android
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Rather than trying to output to the console, Log will output to LogCat which you can find in E...
An “and” operator for an “if” statement in Bash
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edited Nov 15 '19 at 20:51
answered Nov 16 '12 at 0:22
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'IF' in 'SELECT' statement - choose output value based on column values
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1039
SELECT id,
IF(type = 'P', amount, amount * -1) as amount
FROM report
See http://dev...
What does the leading semicolon in JavaScript libraries do?
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It allows you to safely concatenate several JavaScript files into one, to serve it quicker as ...
How to convert a ruby hash object to JSON?
...thod `to_json' for {:make=>"bmw", :year=>"2003"}:Hash
# from (irb):11
# from /usr/bin/irb:12:in `<main>'
require 'json'
# => true
car.to_json
# => "{"make":"bmw","year":"2003"}"
As you can see, requiring json has magically brought method to_json to our Hash.
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