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Is there an onSelect event or equivalent for HTML ?

I have an input form that lets me select from multiple options, and do something when the user changes the selection. Eg, ...
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How to declare a variable in MySQL?

...at has not been initialized, it has a value of NULL and a type of string. SELECT @var_any_var_name You can initialize a variable using SET or SELECT statement: SET @start = 1, @finish = 10; or SELECT @start := 1, @finish := 10; SELECT * FROM places WHERE place BETWEEN @start AND @finish...
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Newline in string attribute

... encoded value to represent a literal. In this case, I used the line feed (char 10). If you want to do "classic" vbCrLf, then you can use 
 By the way, note the syntax: It's the ampersand, a pound, the letter x, then the hex value of the character you want, and then finally a sem...
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Remove all special characters, punctuation and spaces from string

I need to remove all special characters, punctuation and spaces from a string so that I only have letters and numbers. 16 A...
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Where does Console.WriteLine go in ASP.NET?

...ass DebugTextWriter : System.IO.TextWriter { public override void Write(char[] buffer, int index, int count) { System.Diagnostics.Debug.Write(new String(buffer, index, count)); } public override void Write(string value) { System.Diagnostics.Debug.Write(value); } public...
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How to select/get drop down option in Selenium 2

...converting my selenium 1 code to selenium 2 and can't find any easy way to select a label in a drop down menu or get the selected value of a drop down. Do you know how to do that in Selenium 2? ...
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What is a regular expression for a MAC Address?

... The second will incorrectly match strings which contain non-hex characters such as g. – Binary Phile Feb 25 '15 at 15:32 ...
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Compare two files line by line and generate the difference in another file

... That does not do the job requested; it inserts a bunch of extra characters, even with the use of commandline switches suggested in other answers. – xenocyon Jan 26 '16 at 22:25 ...
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Programmatically select text in a contenteditable HTML element?

In JavaScript, it's possible to programmatically select text in an input or textarea element. You can focus an input with ipt.focus() , and then select its contents with ipt.select() . You can even select a specific range with ipt.setSelectionRange(from,to) . ...
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Regex: matching up to the first occurrence of a character

...pattern that matches everything until the first occurrence of a specific character, say a ";" - a semicolon . 13 Answers...