Question 160445 in Javascript Question posted in
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Can regular expression be used to remove a person’s first name in Javascript?

I want it to display "Dr. House" instead of Dr. Greg house and I am only allowed to modify "const re = /^(w+.s)(w+sw+)$/;". Can anyone help me?

here is the code

const userName = "Dr. Greg House"; // Code will also be tested with "Mr. Howard Wolowitz"

/* Your solution goes here */
const re = /^(w+.s)(w+sw+)$/;
const result = re.exec(userName);

console.log(result[1] + " " + result[2]);
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2

Answers


  1. 0

    Use capturing groups only for the words you need to keep:

    const userName = "Dr. Greg House"; // Code will also be tested with "Mr. Howard Wolowitz"

/* Your solution goes here */
const re = /^(w+.)sw+s(w+)$/;
const result = re.exec(userName);

console.log(result[1] + " " + result[2]);
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  2. 0

    A .replace() combined with a .trim() will do the job just as well:

    const names = ["Dr. Greg House", "Mr. Howard Wolowitz", "Dr. Amy Farrah Fowler"];
const res=names.map(n=>{
  return n.trim().replace(/s+S+/,"")
});

console.log(res);
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