How to use the parseFloat() method In Javascript
The parseFloat() method can also be used to convert a string into a number in the same way we use the parseInt() method by passing the string value to it. It will return the value as it is as passed to it.
Syntax:
parseFloat(stringVariable);
Example: The below code is practical implementation of the parseFloat() method to convert a string into a number.
const str1 = "233";
const str2 = "23.33"
console.log("Before Conversion: ");
console.log("str1: ", str1, ", Type: ", typeof str1);
console.log("str2: ", str2, ", Type: ", typeof str2);
console.log("After Conversion: ");
console.log("str1: ", parseFloat(str1), ", Type: ", typeof parseFloat(str1));
console.log("str2: ", parseFloat(str2), ", Type: ", typeof parseFloat(str2));
Output
Before Conversion: str1: 233 , Type: string str2: 23.33 , Type: string After Conversion: str1: 233 , Type: number str2: 23.33 , Type: number
Convert a String to Number in JavaScript
Converting strings to numbers in JavaScript is a fundamental operation, crucial for various tasks like handling user inputs or data processing. By converting strings to numeric values, JavaScript enables developers to perform mathematical operations and comparisons accurately, enhancing the versatility and functionality of their applications.
Table of Content
- Using the ‘+’ operator
- Using the Number() constructor
- Using the parseInt() method
- Using the parseFloat() method
- Using the Math.floor() method
- Using the Math.ceil() method
- Using the Math.round() method
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