如何环javascript列为空

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const myArray = [6, 19, 20];const yourArray = [19, 81, 2];for (let i = 0; i < myArray.length; i++) {  for (let j = 0; j < yourArray.length; j++) {    if (myArray[i] === yourArray[j]) {      console.log('Both loops have the number: ' + yourArray[j])    }  }};