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Best way to alphanumeric check in JavaScript
What is the best way to perform an alphanumeric check on an INPUT field in JSP ? I have attached my current code
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__getattr__ on a module
...s - you could, for example, use a module as a context manager simply by defining __enter__ and __exit__, before those tricks broke.
Recently some historical features have made a comeback, the module __getattr__ among them, and so the existing hack (a module replacing itself with a class in sys.mod...
What is the use of “ref” for reference-type variables in C#?
I understand that if I pass a value-type ( int , struct , etc.) as a parameter (without the ref keyword), a copy of that variable is passed to the method, but if I use the ref keyword a reference to that variable is passed, not a new one.
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How to change Rails 3 server default port in develoment?
On my development machine, I use port 10524. So I start my server this way :
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How to read a CSV file into a .NET Datatable
How can I load a CSV file into a System.Data.DataTable , creating the datatable based on the CSV file?
22 Answers
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Changing a specific column name in pandas DataFrame
I was looking for an elegant way to change a specified column name in a DataFrame .
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Using str_replace so that it only acts on the first match?
...on of str_replace() that only replaces the first occurrence of $search in the $subject . Is there an easy solution to this, or do I need a hacky solution?
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How do I push a local repo to Bitbucket using SourceTree without creating a repo on bitbucket first?
...my local git repos to SourceTree and push them to my Bitbucket account, having new repos identical to my local repos be created on my account? Or do I have to make a repo online first and push to that? Github has a way to publish your local repos directly from it's client, and it creates it automati...
How to normalize an array in NumPy?
...ould like to have the norm of one NumPy array. More specifically, I am looking for an equivalent version of this function
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Read a file in Node.js
I'm quite puzzled with reading files in Node.js.
8 Answers
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