如何区分javascript中的数组值

const array = [1, 2, 3, 4, 5];
const targetValue = 3;

let found = false;
for (let i = 0; i < array.length; i++) {
  if (array[i] === targetValue) {
    found = true;
    break;
  }
}

if (found) {
  console.log("数组中存在目标值");
} else {
  console.log("数组中不存在目标值");
}

const array = [1, 2, 3, 4, 5];
const targetValue = 3;

if (array.includes(targetValue)) {
  console.log("数组中存在目标值");
} else {
  console.log("数组中不存在目标值");
}

const array = [1, 2, 3, 4, 5];
const targetValue = 3;

if (array.indexOf(targetValue) !== -1) {
  console.log("数组中存在目标值");
} else {
  console.log("数组中不存在目标值");
}

const array = [1, 2, 3, 4, 5];
const targetValue = 3;

const foundValue = array.find((value) => value === targetValue);

if (foundValue !== undefined) {
  console.log("数组中存在目标值");
} else {
  console.log("数组中不存在目标值");
}