Interpolating « Language Basics « Ruby

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Ruby » Language Basics » Interpolating 
1.Interpolation
2.Interpolating Variables in Double-Quoted Strings
3.Number value Interpolation
4.The #{100 * 5} interpolates the result of 100 * 5 (500) into the string at that position
5.You can interpolate strings too
6.Constant Interpolation
7.Call integer.to_s and Interpolation
8.Use string method in interpolation
9.Using expression substitution
10.Add extra # sign to interpolation
11.Compare string after interpolation
12.Put class into interpolation block
13.Do a calculation in interpolation block
14.Escape theinterpolation string
15.Interpolation in Here document
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