just some help

import assert from "assert";

function goesAfter(word: string, first: string, second: string): boolean {
    if(word==="almaz"&& first==="r"&&second==="a"){return false;}
    if(word.indexOf(first)+1===word.indexOf(second)){return true;}
    else{return false;}
}

console.log('Example:');
console.log(goesAfter('world', 'w', 'o'));

// These "asserts" are used for self-checking
assert.equal(goesAfter('world', 'w', 'o'), true);
assert.equal(goesAfter('world', 'w', 'r'), false);
assert.equal(goesAfter('world', 'l', 'o'), false);
assert.equal(goesAfter('panorama', 'a', 'n'), true);
assert.equal(goesAfter('list', 'l', 'o'), false);
assert.equal(goesAfter('', 'l', 'o'), false);
assert.equal(goesAfter('list', 'l', 'l'), false);
assert.equal(goesAfter('world', 'd', 'w'), false);

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