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Whether a variable is undefined [duplicate]
...if(page_name != '')
For other variables that don't come from something like jQuery.val() you would do this though:
if(typeof page_name != 'undefined')
You just have to use the typeof operator.
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How to copy files across computers using SSH and MAC OS X Terminal [closed]
...ing to copy my .profile, .rvm and .ssh folders/files to a new computer and keep getting a "not a regular file" response. I know how to use the cp and ssh commands but I'm not sure how to use them in order to transfer files from one computer to another.
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Get jQuery version from inspecting the jQuery object
...lly getting added to my page and I cannot see any reference to it in my markup. If I inspect it in my browser's console, it's there.
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Plotting two variables as lines using ggplot2 on the same graph
A very newbish question, but say I have data like this:
5 Answers
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How to execute raw SQL in Flask-SQLAlchemy app
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jpmc26
21.3k99 gold badges7070 silver badges124124 bronze badges
answered Aug 1 '13 at 7:32
MiguelMiguel
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Verify version of rabbitmq
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sudo rabbitmqctl status
and look for line that looks like that:
{rabbit,"RabbitMQ","2.6.1"},
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How do I put hint in a asp:textbox
...ox? When I say a hint I mean some text which disappears when the user clicks on it. Is there a way to achieve the same using html / css?
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Is a url query parameter valid if it has no value?
Is a url like http://example.com/foo?bar valid?
8 Answers
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Check if all checkboxes are selected
How do I check if all checkboxes with class="abc" are selected?
9 Answers
9
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Google Gson - deserialize list object? (generic type)
I want to transfer a list object via Google Gson, but I don't know how to deserialize generic types.
13 Answers
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