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How to set the first option on a select box using jQuery?

I have two HTML select boxes. I need to reset one select box when I make a selection in another. 17 Answers ...
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Create a unique number with javascript time

...oString(36) + Math.random().toString(36).substr(2) That will give you a 19 character alphanumeric string which is a decent amount of entropy. Albeit half of it is predictable. – Erik Pukinskis Jul 30 '17 at 23:32 ...
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How to check if a string contains only digits in Java [duplicate]

...ves you the actual result: \d References: Java Regular Expressions Java Character Escape Sequences Edit: due to some confusion in other answers, I am writing a test case and will explain some more things in detail. Firstly, if you are in doubt about the correctness of this solution (or other...
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How do I enable the column selection mode in Eclipse?

News wrote that Eclipse 3.5 finally supports column selection. Unfortunately I don't know HOW to enable it. I tried pressing the ALT-key like I am used to in Visual Studio and all other Microsoft products but that had no effect. ...
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How can I send an inner to the bottom of its parent ?

...main sticking points: no set heights, must be completely fluid (not enough chars to explain why display: table was not working). This handled everything beautifully; the images inside the div are also flipped when this happens so I just used the class on those elements to flip them back. Looks exac...
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On select change, get data attribute value

... You need to find the selected option: $(this).find(':selected').data('id') or $(this).find(':selected').attr('data-id') although the first method is preferred. shar...
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HTML entity for the middle dot

... There's actually six variants of this: char description unicode html html entity utf-8 · Middle Dot U+00B7 · · C2 B7 • Bullet U+2022 • • ...
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Get selected value of a dropdown's item using jQuery

How can I get the selected value of a dropdown box using jQuery? I tried using 30 Answers ...
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Simple way to transpose columns and rows in SQL?

...3, 5), ('Blue', 2, 2, 9, 1); Union All, Aggregate and CASE Version: select name, sum(case when color = 'Red' then value else 0 end) Red, sum(case when color = 'Green' then value else 0 end) Green, sum(case when color = 'Blue' then value else 0 end) Blue from ( select color, Paul value...
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jQuery get value of select onChange

I was under the impression that I could get the value of a select input by doing this $(this).val(); and applying the onchange parameter to the select field. ...