Method getRandomChar

src/js/typeShuffle.js:148–150

* * @returns {string} a random char from this.lettersAndSymbols

()

     * @returns {string} a random char from this.lettersAndSymbols
     */
    getRandomChar() {
        return this.lettersAndSymbols[Math.floor(Math.random() * this.lettersAndSymbols.length)];
    }
    /**
     * Effect 1 - clear cells and animate each line cells (delays per line and per cell)
     */