During data processing, there will be strings containing hyphens, which can cause an error in the code execution. Therefore, removing all hyphens in a string is quite common for programmers. If you are looking for a way to deal with the “Replace all hyphens in a string in Javascript” problem, continue to follow our article to find the answer.

How to replace all hyphens in a string in Javascript?

In Javascript, users have the flexibility to use functions to create the program they want. There are many ways to help you replace all hyphens in a string in Javascript. And in this article, we will introduce you to the three most commonly used and easy-to-operate handling methods. Those three methods are:

• Use the ReplaceAll() function
• Use the Replace() function
• Combine split() and join() function

Let’s learn the steps of each method!

Method 1: Use the ReplaceAll() function

This is the fastest, simplest and most widely used method. The replaceAll() method is used to return a new string after replacing the replacement characters that match the passed regular expression.

Syntax:

replaceAll(String regex, String replacement)

In there:

• String regex is the string that needs to be replaced
• String replacement is the string to be replaced.

Code Sample:

const str = 'a-b-c';
const hyphensRemoved = str.replaceAll('-', '');
console.log(hyphensRemoved); 

Output:

abc

In the above program, to remove all hyphens, we just need to enter the value for String regex as ‘-‘, the value for String replacement as ”. And the result returned is the string after the hyphen has been removed.

Method 2: Use the Replace() function

Similar to the above method, Replace() also returns the string after it has been replaced.

Syntax:

String replace(char oldChar, char newChar)

In there:

• char oldChar is the old string that needs to be replaced
• char newChar is the new character string to replace

Code Sample:

const str = 'a-b-c';
const hyphensRemoved = str.replace(/-/g, '');
console.log(hyphensRemoved);

Output

abc

Thus, by replacing all hyphens with spaces, the string has all hyphens removed.

Method 3: Combine split() and join() function

To put it simply, this method will be a combination of the split() function that splits the string and the join() function that joins, from which the function returns a new string.

To make it easier for you to visualize, we will give an example below:

const givenStr = '123-hello-ITtutoria';
const str = givenStr.split('-').join('');
console.log(str);

Output:

123helloITtutoria

In the above example, the Split() function used a hyphen as a parameter to split the string into arrays, and the join() function joined the array, so the hyphen was removed.

Conclusion

Through all the quick answers and relevant information above, you can confidently do your assignment “Replace all hyphens in a string in Javascript” if this kind of question appears. Please make a note or save our information so you can easily find these great methods quickly when needed. In addition, ITtutoria also provides tutorials on topics related to the IT field, stay tuned for our articles. Thanks for reading!