Identify a function that extracts the first numeric value from the text string.
A) parseInt(string)
B) parseFloat(string)
C) isFinite(value)
D) isNaN(value)

Question

Identify a function that extracts the first numeric value from the text string.
A) ​parseInt(string)
B) ​parseFloat(string)
C) ​isFinite(value)
D) ​isNaN(value)

Quizplus · Accepted Answer

parseFloat(string) is the best choice as it can extract the first numeric value from a text string with decimal values as well. parseInt(string) may not work well with decimal values as it rounds off the value to an integer. isFinite(value) and isNaN(value) are different functions and do not serve the purpose of extracting the first numeric value from a text string.

Identify a Function That Extracts the First Numeric Value from the Text