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Add a reference column migration in Rails 4
A user has many uploads. I want to add a column to the uploads table that references the user . What should the migration look like?
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What does [:] mean?
I'm analyzing some Python code and I don't know what
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ng-repeat finish event
I want to call some jQuery function targeting div with table. That table is populated with ng-repeat .
15 Answers
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Iterate over the lines of a string
I have a multi-line string defined like this:
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Passing properties by reference in C#
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Insert code into the page context using a content script
I'm learning how to create Chrome extensions. I just started developing one to catch YouTube events. I want to use it with YouTube flash player (later I will try to make it compatible with HTML5).
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Using PowerShell to write a file in UTF-8 without the BOM
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Which characters need to be escaped when using Bash?
Is there any comprehensive list of characters that need to be escaped in Bash? Can it be checked just with sed ?
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Set value of hidden field in a form using jQuery's “.val()” doesn't work
I've been trying to set the value of a hidden field in a form using jQuery, but without success.
16 Answers
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Environment variable substitution in sed
If I run these commands from a script:
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