charCodeAt < String < JavaScript

The charCodeAt() of a String returns an integer between 0 and 65535 representing the UTF-16 code unit at the given index. To get the full Unicode code point at the given index, use String.prototype.codePointAt().

    
    const sentence = 'The quick brown fox jumps over the lazy dog.';

    const index = 4;

    const sentenceCharCodeAtFour = sentence.charCodeAt(index);

    console.log(sentenceCharCodeAtFour);
    // 113