JavaScript: parseFloat() function

Description

The parseFloat is used to get a floating value from a string. parseFloat is a top-level function and is not associated with any object.

Syntax

parseFloat(string)

Parameters

string: Required. A string that represents the value to test.

Example of parseFloat() function

The following example demonstrate how to use parseFloat() function.

JavaScript Code:

console.log('"21" -> '+parseFloat("21"));
console.log('"21.42" -> '+parseFloat("21.42"));
console.log('"100 234 54" -> '+parseFloat("100 234 54"));
console.log('"89 Math" ->'+parseFloat("89 Math"));
console.log('"Math 89" ->'+parseFloat("Math 89"));

View the example in the browser

Live demo:

See the Pen parsefloat-function-1 by w3resource (@w3resource) on CodePen.

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