How to Remove all dots from a String in JavaScript

Remove all dots from a String #

To remove all dots from a string:

1. Call the replaceAll method, passing it a dot as the first parameter and an empty string as the second - str.replaceAll('.', '').
2. The replaceAll method returns a new string with all matches replaced by the provided replacement.

Copied!
const str = 'a.b.c.';

const dotsRemoved = str.replaceAll('.', '');
console.log(dotsRemoved); // 👉️ 'a_b_c'

We pass the following parameters to the String.replaceAll method:

1. The character we want to match in the string
2. The replacement for each match

The replaceAll method does not change the contents of the original string, it returns a new string with all matches replaced.

To remove all dots from a string:

1. Call the replace method, passing it a regular expression that matches all dots as the first parameter and an empty string as the second.
2. The replace method will return a new string with all dots replaced by an empty string.

Copied!
const str = 'a.b.c.';

const dotsRemoved = str.replace(/\./g, '');
console.log(dotsRemoved); // 👉️ 'abc'

We pass the following parameters to the String.replace method:

1. A regular expression matching all dots in the string
2. The replacement for each match

We have to prefix the dot in the regular expression with a \ character, because we need to escape it.

The dot . is a special character in regular expressions, but we need to match a literal dot ., so we escape it.

We use the g (global) flag to match all occurrences of dots in the string and not just the first one.

By replacing all dots with an empty string, we practically remove all dots in the string.

Further Reading #

• Check if String contains any Letter in JavaScript
• Check if String contains Special Characters in JavaScript
• Check if String starts with Substring in JavaScript
• Check if String ends with Substring in JavaScript
• Check if String starts with one of Multiple Values in JS
• How to count the words in a String in JavaScript
• Check if String contains only Latin Letters in JavaScript
• Check if a String is all Uppercase in JavaScript
• Check if First Letter of String is Uppercase in JavaScript
• Get first letter of each Word in a String in JavaScript
• Remove the Last Word from a String using JavaScript