javascript convert string to float - Brave Search

How to convert string into float in JavaScript?

stackoverflow.com › questions › 642650 › how-to-convert-string-into-float-in-javascript

If they're meant to be separate values, try this:

var values = "554,20".split(",")
var v1 = parseFloat(values[0])
var v2 = parseFloat(values[1])

If they're meant to be a single value (like in French, where one-half is written 0,5)

var value = parseFloat("554,20".replace(",", "."));

Answer from Jesse Rusak on Stack Overflow

developer.mozilla.org › en-US › docs › Web › JavaScript › Guide › Data_structures

JavaScript data types and data structures - JavaScript | MDN

It is also the only value in JavaScript that is not equal to itself. Although a number is conceptually a "mathematical value" and is always implicitly floating-point-encoded, JavaScript provides bitwise operators. When applying bitwise operators, the number is first converted to a 32-bit integer.

developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Global_Objects › parseFloat

parseFloat() - JavaScript | MDN

The parseFloat() function parses a string argument and returns a floating point number.

Discussions

Converting a string to a float in Javascript?

+"3.4" => 3.4 More on reddit.com

r/javascript

15

0

March 27, 2015

Convert string to Float

Hello Everyone! I didn’t find such topic. So I decide to to set up a topic. I couldn’t find at script manual the function to convert string to float. I tried to use the Python function a = "52525238,27337273,83495772" float(a) or int(a) but it didn’t work. Can somebody help me with this? More on forum.universal-robots.com

forum.universal-robots.com

0

June 9, 2017

What is the fastest way to convert string to float out of these 13 methods?

Well most of those won't cast to a float as they're bitwise operations. But in general, use parseFloat. Don't prematurely optimise. More on reddit.com

r/javascript

7

0

February 12, 2018

Library/function that will tidy up weird JS float values without converting to string in between?

If precision is important, then just use integers for everything and convert to floats only at the end for the UI; if you want to round to a specific precision then just multiply your floats into ints, round, and then divide back down again: function round(number, precision = 1){ return Math.round( number * Math.pow(10, precision) ) / Math.pow(10, precision); } // with int rounding round(0.2 + 0.1); // 0.3 // without int rounding // 0.2 + 0.1 = 0.30000000000000004 More on reddit.com

r/learnjavascript

11

0

July 13, 2024

Videos

How to convert a STRING to FLOAT/INT in JavaScript. - YouTube

How to Use parseFloat in JavaScript | Convert Strings to Decimal ...

How to Convert String into Float in JavaScript - YouTube

✅ Convert String to Number in JavaScript | JavaScript ParseInt ...

January 11, 2022

How to Convert Strings to Numbers & Numbers to Strings in JavaScript ...

How to Convert String into Number in JavaScript — (4 Easy Methods) ...

stackoverflow.com › questions › 642650 › how-to-convert-string-into-float-in-javascript

parsing - How to convert string into float in JavaScript? - Stack Overflow

If they're meant to be separate values, try this:

var values = "554,20".split(",")
var v1 = parseFloat(values[0])
var v2 = parseFloat(values[1])

If they're meant to be a single value (like in French, where one-half is written 0,5)

var value = parseFloat("554,20".replace(",", "."));

Have you ever tried to do this? :p

var str = '3.8';ie
alert( +(str) + 0.2 );

+(string) will cast string into float.

Handy!

So in order to solve your problem, you can do something like this:

var floatValue = +(str.replace(/,/,'.'));

freecodecamp.org › news › how-to-convert-a-string-to-a-number-in-javascript

How to Convert a String to a Number in JavaScript

May 2, 2022 - We can also use the unary plus operator (+) to convert a string into a floating point number.

w3schools.com › jsref › jsref_parsefloat.asp

JavaScript parseFloat() Method

The parseFloat() method parses a value as a string and returns the first number. If the first character cannot be converted, NaN is returned. Leading and trailing spaces are ignored.

educba.com › home › software development › software development tutorials › javascript tutorial › javascript string to float

JavaScript String to Float | Two Methods to Convert String to Float

March 27, 2023 - This method uses the JavaScript Type Conversion function to convert the string type to float.

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blog.udemy.com › home › javascript parsefloat: a simple way to convert strings into floating point numbers

JavaScript parseFloat: a simple way to convert strings into floating point numbers - Udemy Blog

December 4, 2019 - Here the web page prompts the user to enter a string in the text box and uses parseFloat to parse it and returns the result as a floating number. var num1 = prompt(“enter a number”) var answer = parseFloat(num1) Alert(“the number you entered is:” + answer) Now, let me explain the code. var in JavaScript means a variable.

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favtutor.com › articles › convert-string-to-float-javascript

Convert String to Float in JavaScript (5 Easy Ways)

November 30, 2023 - Understand how to do conversion of string to float in javascript using parseFloat, unary plus operator, number() function etc.

flexiple.com › javascript › string-to-number

How to Convert a String to a Number In JavaScript - Flexiple

June 6, 2024 - To convert a string to a number in JavaScript, you can use the parseFloat() function. This function parses a string argument and returns a floating point number.

tutorialkart.com › javascript › javascript-convert-string-to-float

How to convert String to Float in JavaScript?

September 23, 2021 - To convert a string to float in JavaScript, call parseFloat() function and pass the string as argument to it.

typescriptlang.org › docs › handbook › 2 › everyday-types.html

TypeScript: Documentation - Everyday Types

string represents string values like "Hello, world" number is for numbers like 42. JavaScript does not have a special runtime value for integers, so there’s no equivalent to int or float - everything is simply number

geeksforgeeks.org › javascript › javascript-program-to-convert-float-to-string

JavaScript Program to Convert Float to String - GeeksforGeeks

August 5, 2025 - ... String(num) converts the float num into a string. This method is simple and widely supported for basic type conversion. Every JavaScript object has the toString() method, which returns a string representing the object.

geeksforgeeks.org › javascript › how-to-parse-float-with-two-decimal-places-in-javascript

How to Parse Float with Two Decimal Places in JavaScript? - GeeksforGeeks

JavaScript provides an inbuilt parseFloat() method to parse a string and returns a floating-point number. Below are the approaches to parse float to two decimal places in JavaScript: ... The parseFloat() method converts a string to a floating-point ...

Published July 23, 2025

reddit.com › r/javascript › converting a string to a float in javascript?

r/javascript on Reddit: Converting a string to a float in Javascript?

March 27, 2015 -

I can't use parseFloat(). I am so far doing the obvious by checking each character, but I feel there has to be a more elegant way! My function needs to act exactly the same as parseFloat() does. Can anyone help?

Why can't you use parseFloat()?

habtesoft.medium.com › convert-a-string-to-a-number-in-javascript-73b7b32fc622

Convert a string to a number in JavaScript | by habtesoft | Medium

October 18, 2024 - The parseFloat() function is used to parse a string and return a floating-point number. It works in a similar way to parseInt(), but can handle decimals. Here’s an example of using parseFloat() to convert a string to a number:

digitalocean.com › community › tutorials › python-convert-string-to-float

How to Convert String to Float in Python: Complete Guide with Examples | DigitalOcean

July 10, 2025 - Learn how to convert strings to floats in Python using float(). Includes syntax, examples, error handling tips, and real-world use cases for data parsing.

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Convert string to Float - URScript - Universal Robots Forum

June 9, 2017 - Hello Everyone! I didn't find such topic. So I decide to to set up a topic. I couldn't find at script manual the function to convert string to float. I tried to use the Python function a = "52525238,27337273,83495772…

developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Global_Objects › Number › parseFloat

Number.parseFloat() - JavaScript | MDN

The Number.parseFloat() static method parses an argument and returns a floating point number. If a number cannot be parsed from the argument, it returns NaN.

docs.vultr.com › javascript › global › parseFloat

JavaScript parseFloat() - Parse String to Float | Vultr Docs

November 6, 2024 - The parseFloat() function in JavaScript is a invaluable tool for transforming string data into float numbers, significantly aiding in calculations and data processing. It efficiently handles a variety of string formats including those with ...

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deadsimplechat.com › blog › 5-ways-to-convert-string-to-a-number-in-javascript

5 Ways to Convert String to a Number in JavaScript

July 6, 2024 - value: The value that needs to be converted into a numberic type. This value can be Boolean, String or an Object · The number() function returns a primitive value converted or a integer or a floating point number.