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How to get the last character of a string in a shell?

I have written the following lines to get the last character of a string: 8 Answers 8 ...
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Does java have a int.tryparse that doesn't throw an exception for bad data? [duplicate]

C# has Int.TryParse: Int32.TryParse Method (String, Int32%) 3 Answers 3 ...
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How to select where ID in Array Rails ActiveRecord without exception

... this is my preferred solution, it seems cleaner than the exception handling route – Sam Saffron Sep 17 '09 at 23:25 5 ...
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How to use RestSharp with async/await

...ask<T> instances. These Task<T> overloads have an added "Task" string added to their names, for example the Task<T> overload for ExecuteAsyncGet is called ExecuteGetTaskAsync<T>. For each of the new Task<T> overloads there is one method that does not require a Cancellat...
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Ternary operator (?:) in Bash

... Note that the = operator tests for string equality, not numeric equality (i.e. [[ 05 = 5 ]] is false). If you want numeric comparison, use -eq instead. – Gordon Davisson Oct 17 '10 at 19:54 ...
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Create instance of generic type in Java?

...get(); } } You would construct this class like this: SomeContainer<String> stringContainer = new SomeContainer<>(String::new); The syntax String::new on that line is a constructor reference. If your constructor takes arguments you can use a lambda expression instead: SomeContain...
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How should I call 3 functions in order to execute them one after the other?

...setTimeout here, but: in this case I've added the code to execute as a string. this is the simplest way to pass a var into your setTimeout-ed function, but purists will complain. you can also pass a function name without quotes, but no variable can be passed. your code does not wait for setTime...
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Is it a good idea to index datetime field in mysql?

... for all cases. Yes, storing an integer is generally faster than storing a string, but what about all the DateTime functions MySQL exposes? Implementing them yourself would either have a negative effect on performance or functionality. – Greg Sep 26 '13 at 12:1...
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How do you use the “WITH” clause in MySQL?

I am converting all my SQL Server queries to MySQL and my queries that have WITH in them are all failing. Here's an example: ...
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Checking if a variable is an integer

... this wont work if the number comes in a string like "11111111" – Ricbermo Feb 11 '14 at 15:00 ...