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Cómo evitar que la selección aleatoria de letras haga letras duplicadas

Estoy haciendo un juego de palabras que elige 8 letras al azar del alfabeto y el jugador debe encontrar palabras que usen estas letras. Estoy tratando de averiguar cómo evitar que muestre letras duplicadas.

Aquí está el código que estoy usando para elegir las letras.

 function makeid(length) { var result = ''; var characters = 'aaabcdeeefghiiijklmnooopqrstuuuvwxyz'; var charactersLength = characters.length; for ( var i = 0; i < length; i++ ) { result += characters.charAt(Math.floor(Math.random() * charactersLength)); } return result; } console.log(makeid(8));

about 4 years ago · Juan Pablo Isaza
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