JavaScript: Convert a float-point arithmetic to the Decimal mark form and It will make a comma separated string from a number

JavaScript: Exercise-125 with Solution

Decimal Format Float to Comma-Separated String

Write a JavaScript program that converts float-point arithmetic to decimal form, and creates a comma separated string from a number.

• Use Number.prototype.toLocaleString() to convert the number to decimal mark format.

Sample Solution:

JavaScript Code:

//#Source https://bit.ly/2neWfJ2 

// Define the 'toDecimalMark' function.
const toDecimalMark = num => num.toLocaleString('en-US');

// Test the 'toDecimalMark' function with sample inputs.
console.log(toDecimalMark(12305030388.9087)); // Output: "12,305,030,388.909"
console.log(toDecimalMark(123.2264)); // Output: "123.226"
console.log(toDecimalMark(-100.10)); // Output: "-100.1"

Output:

12,305,030,388.909
123.226
-100.1

Flowchart:

Live Demo:

See the Pen javascript-basic-exercise-125-1 by w3resource (@w3resource) on CodePen.

For more Practice: Solve these Related Problems:

• Write a JavaScript program that converts a floating-point number to a string with comma separators for thousands.
• Write a JavaScript function that formats a decimal number into a localized string with appropriate commas.
• Write a JavaScript program that takes a float and returns its string representation in decimal format with grouping commas.

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