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Rails params explained?
Could anyone explain params in Rails controller: where they come from, and what they are referencing?
5 Answers
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Passing route control with optional parameter after root in express?
I'm working on a simple url-shortening app and have the following express routes:
2 Answers
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Pick a random element from an array
Suppose I have an array and I want to pick one element at random.
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Altering a column: null to not null
I have a table that has several nullable integer columns. This is undesirable for several reasons, so I am looking to update all nulls to 0 and then set these columns to NOT NULL . Aside from changing nulls to 0 , data must be preserved.
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Get underlying NSData from UIImage
I can create UIImage from NSData using [UIImage imageWithData:] or [UIImage initWithData:] methods.
6 Answers
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Why does the JavaScript need to start with “;”?
I have recently noticed that a lot of JavaScript files on the Web start with a ; immediately following the comment section.
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Is it possible to adjust x,y position for titleLabel of UIButton?
Is it possible to adjust the x,y position for the titleLabel of a UIButton ?
4 Answers
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Access denied for user 'root@localhost' (using password:NO)
I'm new to MySQL, I'm trying to run WordPress in my Windows desktop and it needs MySQL.
16 Answers
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How do I find files that do not contain a given string pattern?
How do I find out the files in the current directory which do not contain the word foo (using grep )?
16 Answers
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iOS - How to set a UISwitch programmatically
I want to set my UISwitch to on or off programmatically. How would I do that? I am an iOS newbie.
5 Answers
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