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jQuery: checking if the value of a field is null (empty)
Is this a good way to check if the value of a field is null ?
7 Answers
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grepping using the “|” alternative operator
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You need to escape the |. The following should do the job.
grep "gene\|exon" AT5G60410.gff
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Use of ~ (tilde) in R programming Language
I saw in a tutorial about regression modeling the following command :
2 Answers
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What is a provisioning profile used for when developing iPhone applications?
What is the purpose of a provisioning profile and why is it needed when developing an iPhone application? If I don't have a provisioning profile, what happens?
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SQL Add foreign key to existing column
If I am using the following SQL command in SQL Server 2008 to update a table with a foreign key constraint:
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Best way to work with transactions in MS SQL Server Management Studio
...e an SQL statement that's syntactically and semantically correct so it executes.
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Comparing Timer with DispatcherTimer
... and System.Windows.Threading.DispatcherTimer() ? In which cases, we should use them? any best practices ?
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What is the difference between `after_create` and `after_save` and when to use which?
Are after_create and after_save the same as per functionality?
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Python Mocking a function from an imported module
I want to understand how to @patch a function from an imported module.
2 Answers
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Difference between $state.transitionTo() and $state.go() in Angular ui-router
In AngularJS, I see sometimes we use $state.transitionTo() and sometimes we use $state.go() . Can anyone tell me how they differ and when one should be used over the other?
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