var = 5
puts "Method #1: #{var}"
puts "Method #2: %d" % var
I’m looking for advantages and drawbacks with each method, if there are at all.
var = 5 puts Method #1: #{var} puts Method #2: %d % var I’m
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var = 5
puts "Method #1: #{var}"
puts "Method #2: %d" % var
I’m looking for advantages and drawbacks with each method, if there are at all.
The first one is simple string interpolation, while the second is syntactic sugar for Kernel#sprintf.
Use the first for cases where you just need to generate a string that includes variable data in it. The second is better for when you need to do specialized formatting beyond just putting a variable into a string. The first will have better performance, so do it that way unless you need specialized formatting.
And it case it comes up,
"hello #{var}"is much faster than"hello " + var.