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find() with nil when there are no records
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173
Yes, just do:
Challenge.find_by_id(10)
For Rails 4 and 5:
Challenge.find_by(id: 10)
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What is an IndexOutOfRangeException / ArgumentOutOfRangeException and how do I fix it?
...t means that first element has index 0 and last element has index Length - 1 (where Length is total number of items in the array) so this code doesn't work:
array[array.Length] = 0;
Moreover please note that if you have a multidimensional array then you can't use Array.Length for both dimension, ...
Generate random string/characters in JavaScript
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Android Gallery on Android 4.4 (KitKat) returns different URI for Intent.ACTION_GET_CONTENT
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SQL MAX of multiple columns?
How do you return 1 value per row of the max of several columns:
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How to create NS_OPTIONS-style bitmask enumerations in Swift?
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Split string with delimiters in C
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165
You can use the strtok() function to split a string (and specify the delimiter to use). Note t...
How to convert a String to its equivalent LINQ Expression Tree?
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edited Sep 28 '15 at 11:53
Erwin Mayer
15.2k88 gold badges7474 silver badges113113 bronze badges
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PHPMyAdmin Default login password [closed]
I have done a fresh installation of Fedora 14 and installed the phpMyAdmin module. When I run phpMyAdmin, it asks me for a username and password.
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