js检查字符串是否存在数组中，js判断字符串是否存在

• ①

let arrayOfObjects = [
  { id: '1', name: 'Alice' },
  { id: '2', name: 'Bob' },
  { id: '3', name: 'Charlie' }
];
 
let valueToCheck = 'Bob';
 
let exists = arrayOfObjects.some(obj => obj.name === valueToCheck);
 
console.log(exists); // 输出: true

• ②

let arrayOfStrings = ['Alice', 'Bob', 'Charlie'];
 
let valueToCheck = 'Bob';
 
let exists = arrayOfStrings.includes(valueToCheck);
 
console.log(exists); // 输出: true