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What is the optimal length for an email address in a database?

...acted portion of my query, reflecting the EMAIL_ADDRESS column data type and property: 8 Answers ...
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Get nth character of a string in Swift programming language

...tion: Please see Leo Dabus' answer for a proper implementation for Swift 4 and Swift 5. Swift 4 or later The Substring type was introduced in Swift 4 to make substrings faster and more efficient by sharing storage with the original string, so that's what the subscript functions should return. Try...
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When to use thread pool in C#? [closed]

I have been trying to learn multi-threaded programming in C# and I am confused about when it is best to use a thread pool vs. create my own threads. One book recommends using a thread pool for small tasks only (whatever that means), but I can't seem to find any real guidelines. What are some consid...
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Stopwatch vs. using System.DateTime.Now for timing events [duplicate]

I wanted to track the performance of my code so I stored the start and end time using System.DateTime.Now . I took the difference between the two as the time my code to execute. ...
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Most efficient way to prepend a value to an array

... Only one issue with this solution. Doesn't unshift() return its length, and not the array as in this answer? w3schools.com/jsref/jsref_unshift.asp – iDVB Mar 8 '15 at 5:36 ...
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Change the default editor for files opened in the terminal? (e.g. set it to TextEdit/Coda/Textmate)

...tions/TextEdit.app/Contents/MacOS/TextEdit" or just type the following command into your Terminal: echo "export EDITOR=\"/Applications/TextEdit.app/Contents/MacOS/TextEdit\"" >> ~/.bashrc If you are using zsh, use ~/.zshrc instead of ~/.bashrc. ...
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Recursively remove files

Does anyone have a solution to remove those pesky ._ and .DS_Store files that one gets after moving files from a Mac to A Linux Server? ...
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How to get past the login page with Wget?

...re the --post-data parameter is properly percent-encoded (especially ampersands!) or the request will probably fail. Also make sure that user and password are the correct keys; you can find out the correct keys by sleuthing the HTML of the login page (look into your browser’s “inspect element”...
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How to convert a string with comma-delimited items to a list in Python?

... This is not an array, it is a list, Arrays represent basic values and behave very much like lists, except the type of objects stored in them is constrained. – joaquin Mar 22 '11 at 6:32 ...
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Process escape sequences in a string in Python

... hands down, the best solution! btw, by docs it should be "string_escape" (with underscore) but for some reason accepts anything in the pattern 'string escape', 'string@escape" and whatnot... basically 'string\W+escape' ...