Removing Space from String in JavaScript

When working with strings in JavaScript, you may need to remove extra spaces from a string. This can be done using various methods and functions in JavaScript. In this article, we will explore different ways to remove space from a string using JavaScript.

Method 1: Using replace() method

The replace() method in JavaScript can be used to remove characters from a string, including spaces. Here’s an example of how to use replace() to remove space from a string:

  
    const str = "Hello   World";
    const newStr = str.replace(/s+/g, "");
    console.log(newStr); // Output: "HelloWorld"
  
  

In this example, we used a regular expression (s+) to match one or more spaces in the string and replaced them with an empty string, effectively removing the spaces from the string.

Method 2: Using split() and join() methods

Another way to remove space from a string is by using the split() and join() methods. Here’s an example of how to do this:

  
    const str = "Hello   World";
    const newStr = str.split(' ').join('');
    console.log(newStr); // Output: "HelloWorld"
  
  

In this example, we used the split() method to split the string into an array of substrings using the space as the delimiter, and then used the join() method to join the substrings back together without any spaces.

Method 3: Using trim() method

The trim() method in JavaScript can be used to remove whitespace from both ends of a string. While it doesn’t remove spaces within the string, it can be useful in some cases. Here’s an example:

  
    const str = "   Hello World    ";
    const newStr = str.trim();
    console.log(newStr); // Output: "Hello World"
  
  

As you can see, the trim() method removed the extra spaces at the beginning and end of the string.

Conclusion

There are multiple ways to remove space from a string in JavaScript, and the choice of method depends on the specific requirements of your project. Whether you use the replace() method, split() and join() methods, or the trim() method, JavaScript provides a variety of options for manipulating strings to fit your needs.