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Increment a value in Postgres
I'm a little new to postgres. I want to take a value (which is an integer) in a field in a postgres table and increment it by one. For example if the table 'totals' had 2 columns, 'name' and 'total', and Bill had a total of 203, what would be the SQL statement I'd use in order to move Bill's total t...
Finding child element of parent pure javascript
What would the most efficient method be to find a child element of (with class or ID) of a particular parent element using pure javascript only. No jQuery or other frameworks.
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d3 axis labeling
How do I add text labels to axes in d3?
6 Answers
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remove all variables except functions
I have loaded in a R console different type of objects.
I can remove them all using
5 Answers
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Command to change the default home directory of a user
I would like to know whether there is any simple shell command to change the user home directory in Linux/Unix (one similar to chsh which changes the default login shell of an existing valid user) without touching the /etc/passwd file. Thanks
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SQL query for today's date minus two months
I want to select all the records in a table where their date of entry is older then 2 months.
5 Answers
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Passing route control with optional parameter after root in express?
I'm working on a simple url-shortening app and have the following express routes:
2 Answers
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Escape double quotes in a string
Double quotes can be escaped like this:
6 Answers
6
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Implementing slicing in __getitem__
I am trying to implement slice functionality for a class I am making that creates a vector representation.
5 Answers
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What is MOJO in Maven?
I'm reading about Maven right now and everywhere in a text I see this word (mojo). I approximately understand what it means, but I would not refuse from a good explanation. I tried to google, but found only non-maven explanations.
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