stdlib/string/new_methods.rb

tests/_examples/stdlib/string/new_methods.rb in the metorex repository.

# to_i
puts("42".to_i)
puts("  99  ".to_i)
puts("hello".to_i)
puts("-7".to_i)
puts("3abc".to_i)

# to_f
puts("3.14".to_f)
puts("hello".to_f)
puts("-2.5".to_f)

# dup
s = "original"
d = s.dup
puts(d)

# gsub
puts("hello world".gsub("o", "0"))
puts("aaa".gsub("a", "bb"))

# sub (replace first only)
puts("hello hello".sub("hello", "hi"))

# empty?
puts("".empty?)
puts("hi".empty?)

Output:

42
99
0
-7
3
3.14
0.0
-2.5
original
hell0 w0rld
bbbbbb
hi hello
true
false