比较javascript中数组的值

const arr1 = [1, 2, 3];
const arr2 = [1, 2, 3];
console.log(arr1 == arr2);  // false
console.log(arr1 === arr2);  // false

const arr1 = [1, 2, 3];
const arr2 = [1, 2, 3];
let isEqual = true;

if (arr1.length === arr2.length) {
  for (let i = 0; i < arr1.length; i++) {
    if (arr1[i] !== arr2[i]) {
      isEqual = false;
      break;
    }
  }
} else {
  isEqual = false;
}

console.log(isEqual);  // true

const arr1 = [1, 2, 3];
const arr2 = [1, 2, 3];
const str1 = JSON.stringify(arr1);
const str2 = JSON.stringify(arr2);
console.log(str1 === str2);  // true