freeCodeCamp/curriculum/challenges/chinese/02-javascript-algorithms-an.../regular-expressions/match-literal-strings.md

1.6 KiB

id title challengeType forumTopicId dashedName
587d7db3367417b2b2512b8f Match Literal Strings 1 301355 match-literal-strings

--description--

In the last challenge, you searched for the word "Hello" using the regular expression /Hello/. That regex searched for a literal match of the string "Hello". Here's another example searching for a literal match of the string "Kevin":

let testStr = "Hello, my name is Kevin.";
let testRegex = /Kevin/;
testRegex.test(testStr);
// Returns true

Any other forms of "Kevin" will not match. For example, the regex /Kevin/ will not match "kevin" or "KEVIN".

let wrongRegex = /kevin/;
wrongRegex.test(testStr);
// Returns false

A future challenge will show how to match those other forms as well.

--instructions--

Complete the regex waldoRegex to find "Waldo" in the string waldoIsHiding with a literal match.

--hints--

Your regex waldoRegex should find "Waldo"

assert(waldoRegex.test(waldoIsHiding));

Your regex waldoRegex should not search for anything else.

assert(!waldoRegex.test('Somewhere is hiding in this text.'));

You should perform a literal string match with your regex.

assert(!/\/.*\/i/.test(code));

--seed--

--seed-contents--

let waldoIsHiding = "Somewhere Waldo is hiding in this text.";
let waldoRegex = /search/; // Change this line
let result = waldoRegex.test(waldoIsHiding);

--solutions--

let waldoIsHiding = "Somewhere Waldo is hiding in this text.";
let waldoRegex = /Waldo/; // Change this line
let result = waldoRegex.test(waldoIsHiding);