programming-examples/How Strings Are Converted to Numbers.pl at master - programming-examples - michuIT: Everything is code

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 String           Converts to Number
 "123 abc"        123
 "hi"             0
 "4e3"            4000
 "-6**3xyz"       -6
 " .456!"         0.456
 "x.1234"         0
 "0xf"            0