30 lines
749 B
Markdown
30 lines
749 B
Markdown
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---
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title: Ruby String Interpolation
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---
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# String Interpolation
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String interpolation provides a more readable and concise syntax for building strings. You may be familiar with concatenation via the `+` or `<<` methods:
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```ruby
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"Hello " + "World!" #=> Hello World
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"Hello " << "World!" #=> Hello World
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```
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String interpolation provides a way to embed Ruby code directly into a string:
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```ruby
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place = "World"
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"Hello #{place}!" #=> Hello World!
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"4 + 4 is #{4 + 4}" #=> 4 + 4 is 8
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```
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Everything between `#{` and `}` is evaluated as Ruby code. In order to do so, the string must be surrounded by double quotes (`"`).
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Single quotes will return the exact string inside the quotes:
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```ruby
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place = "World"
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'Hello #{place}!' #=> Hello #{place}!
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```
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