How to replace leading zero with spaces - JavaScript

We are required to write a JavaScript function that takes in a string that represents a number. Replace the leading zero with spaces in the number. We need to make sure the prior spaces in number are retained.

For example,

If the string value is defined as −

"   004590808"

Then the output should come as −

" 4590808"

Example

Following is the code −

const str = ' 004590808';
const replaceWithSpace = str => {
   let replaced = '';
   const regex = new RegExp(/^\s*0+/);
   replaced = str.replace(regex, el => {
      const { length } = el;
      return ' '.repeat(length);
   });
   return replaced;
};
console.log(replaceWithSpace(str));

Output

This will produce the following output in console −

4590808

AmitDiwan

Published on 30-Sep-2020 14:36:30

• Related Questions & Answers
• How can I replace newlines with spaces in JavaScript?
• Capitalize a word and replace spaces with underscore - JavaScript?
• How to replace multiple spaces with a single space in C#?
• How to preserve leading 0 with JavaScript numbers?
• HTML5 Input type=number removes leading zero
• How to replace zero with previous value in an R data frame column?
• How to remove white spaces (leading and trailing) from string value in MongoDB?
• How to pad a number with leading zeros in JavaScript?
• Trim a string in Java to remove leading and trailing spaces
• How to replace zero with first non-zero occurring at the next position in an R data frame column?
• Trim (Remove leading and trailing spaces) a string in C#
• Replacing spaces with underscores in JavaScript?
• How to add a leading zero to some values in a column in MySQL?
• How to Replace null with “-” JavaScript
• How to replace missing values recorded with blank spaces in R with NA or any other value?