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When to add what indexes in a table in Rails
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176
Should I add "index" to all the foreign keys like "xxx_id"?
It would be better, because i...
How to ignore user's time zone and force Date() use specific time zone
In an JS app, I receive timestamp (eq. 1270544790922 ) from server (Ajax).
7 Answers
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fatal: 'origin' does not appear to be a git repository
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117
$HOME/.gitconfig is your global config for git.
There are three levels of config files.
cat ...
Invoking JavaScript code in an iframe from the parent page
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17 Answers
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Can vim monitor realtime changes to a file
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103
You can :set autoread so that vim reads the file when it changes. However (depending on your p...
Easier way to create circle div than using an image?
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14 Answers
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How can I create a border around an Android LinearLayout?
...a file called customborder.xml in your drawable folder:
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<corners android:radius="20dp"/>
<padding android:left="10dp" android:right="10dp"...
How do I convert a byte array to Base64 in Java?
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231
Java 8+
Encode or decode byte arrays:
byte[] encoded = Base64.getEncoder().encode("Hello".getByt...
What requests do browsers' “F5” and “Ctrl + F5” refreshes generate?
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314
Generally speaking:
F5 may give you the same page even if the content is changed, because it m...
How to read json file into java with simple JSON library
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13 Answers
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