Julia: $: Evaluate expression inside string literal

By using ‘$’, you can evaluate an expression inside string literal.

julia> message="Welcome";name="Hari";

julia> info="$message,$name"
"Welcome,Hari"

julia> data="1+2=$(1+2)";

julia> data
"1+2=3"

To include $ in string literal, you have to use \.

julia> message="Today revenue is \$100";

julia> print(message)
Today revenue is $100

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