to_f string method converts leading characters in a string to a floating point number. If there is no number character at the leading position in the string, a
0.0 result is returned.
str: This is the string whose leading number characters we want to convert to a floating point number.
The value returned is a floating point number of the leading number characters present in a string.
# create strings str1 = "234hello" str2 = "15.4kg" str3 = "welcome" # comvert to floatin # point number puts str1.to_f; puts str2.to_f; puts str3.to_f;
Line 2 to 4: We create some strings.
Line 8 to 10: We convert the leading number strings to a floating point number. Then, we print them.
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