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How to Set Focus on Input Field using JQuery
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138
Try this, to set the focus to the first input field:
$(this).parent().siblings('div.bottom')....
How to subtract date/time in JavaScript? [duplicate]
...the difference between two dates, in milliseconds
var diff = Math.abs(date1 - date2);
In your example, it'd be
var diff = Math.abs(new Date() - compareDate);
You need to make sure that compareDate is a valid Date object.
Something like this will probably work for you
var diff = Math.abs(new ...
How to check an Android device is HDPI screen or MDPI screen?
...rces().getDisplayMetrics().density;
// return 0.75 if it's LDPI
// return 1.0 if it's MDPI
// return 1.5 if it's HDPI
// return 2.0 if it's XHDPI
// return 3.0 if it's XXHDPI
// return 4.0 if it's XXXHDPI
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Access-Control-Allow-Origin wildcard subdomains, ports and protocols
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11 Answers
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javax.xml.bind.UnmarshalException: unexpected element (uri:“”, local:“Group”)
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14 Answers
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Disable Rails SQL logging in console
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321
To turn it off:
old_logger = ActiveRecord::Base.logger
ActiveRecord::Base.logger = nil
To tur...
How are parameters sent in an HTTP POST request?
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1285
The values are sent in the request body, in the format that the content type specifies.
Usua...
How to add 10 days to current time in Rails
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Use
Time.now + 10.days
or even
10.days.from_now
Both definitely work. Are you sure you're in Rails and not just Ruby?
If you definitely are in Rails, where are you trying to run this from? Note that Active Support has to be loaded.
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How can you do anything useful without mutable state?
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18 Answers
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