Guide to utilizing regex to verify if a specific character is classified as a special character

How can I determine if a specific character is considered special in regex?

let character = "&";
if(condition){
  console.log("The character is a special character");
}

Answer №1

When using a RegExp, \W signifies any special character

To clarify: \W matches any character that is not a word character in the basic Latin alphabet. It's essentially the same as [^A-Za-z0-9_].

If you're curious about these characters, you can view a comprehensive list here:

https://example.com/regular-expression-character-classes

const pattern = /\W/g;

const checkPattern = (str) => {
    if(pattern.test(str)){
      return (`The character "${str}" is a special character`);
    } else {
      return (`The character "${str}" is not a special character`);
    }
}
alert(checkPattern("?"));
alert(checkPattern("n"));
alert(checkPattern("☺️"));

Answer №2

const format = /[!@#$%^&*()_+\-=\[\]{};':"\\|,.<>\/?]+/;

const checkSpecialChar = (string) => {
    if(format.test(string)){
      return console.log("The provided string contains a special character");
    } else {
      return console.log("No special characters found in the string");
    }
}
checkSpecialChar('?');

Answer №3

const specialChar = '*';
const regex = /[^a-zA-Z1-4]/g;

if (regex.test(specialChar)) {
    console.log("This character is a special symbol");
}

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