How to get the number from the middle of a string

Given the following string extract the number

 'Buy for $199.99' // 199.99
 'Gas Price $2.304 per gallon' // 2.304

We can solve this using slice and, parseFloat().

  • slice returns the string from the starting index until the end of the string.

  • parseFloat parses until it finds the non-numeric character.

parseFloat( 'Buy for $199.99'.slice(9) ) // 199.99
parseFloat( 'Gas Price $2.304 per gallon'.slice(11) ) // 2.304

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