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How to reset a single table in rails?
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In case anyone tried this and got an error, I did ActiveRecord::Base.connection.execute("DELETE from 'yourtablename'") and it worked because it would give me an error that said sqlite_sequence where name = 'yourtablename' is not a valid table name or something like that.
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Rails: select unique values from a column
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I did a: group(:rating).collect { |r| r.rating } Since map == collect, where can I read about this sintax you used (&:rating)? I don't see this in Ruby's documentation.
– alexandrecosta
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Why am I seeing “TypeError: string indices must be integers”?
...de; the string indices are the ones in the square brackets, e.g., gravatar_id. So I'd first check your data variable to see what you received there; I guess that data is a list of strings (or at least a list containing at least one string) while it should be a list of dictionaries.
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How to detect input type=file “change” for the same file?
...t will erase the file path making it changeable every time.
Example on jsFiddle.
Or you can simply use .prop("value", ""), see this example on jsFiddle.
jQuery 1.6+ prop
Earlier versions attr
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Group by month and year in MySQL
...ld contribute to more pressing questions too. You can find tips on to provide good answers here.
– Mifeet
Apr 14 '14 at 13:18
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Is it possible to get element from HashMap by its position?
...Integer, String>();
Define like this and.
private Entry getEntry(int id){
Iterator iterator = map.entrySet().iterator();
int n = 0;
while(iterator.hasNext()){
Entry entry = (Entry) iterator.next();
if(n == id){
return entry;
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Tools to selectively Copy HTML+CSS+JS From A Specific Element of DOM [closed]
...n and play around with it locally, it would be a pain to copy all the individual elements and their associated CSS. And probably just as much work to save the entire source and cut out the unrelated code.
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HTML tag want to add both href and onclick working
...on to the website.
$("#myHref").on('click', function() {
alert("inside onclick");
window.location = "http://www.google.com";
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<a href="#" id="myHref">Click me</a>
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How do I calculate a point on a circle’s circumference?
... trying to derive this equation for an hour now. Thanks. Who know the trig identities you learned in high school would be so helpful.
– Isioma Nnodum
May 28 '14 at 22:37
1
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What does the @ symbol represent in objective-c?
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The @ character isn't used in C or C++ identifiers, so it's used to introduce Objective-C language keywords in a way that won't conflict with the other languages' keywords. This enables the "Objective" part of the language to freely intermix with the C or C++ par...