判断两个数组对象是否含有相同的key值
let product1 = [ { "name": "苹果", "num": 3 }, {"name": "番茄", "num": 2 }, { "name": "土豆", "num": 1 }]
let product2 = [ { "name": "苹果", "num": 4 }, {"name": "橘子", "num": 5 }, { "name": "香蕉", "num": 6 }]
let array = [product1, product2];
function fun(array) {
let result;
let value1 = []
let value2 = []
for (let index = 0; index < array.length; index++) {
array[index].forEach(val => {
if (index === 0) {
value1.push(val.name)
} else {
value2.push(val.name)
}
})
}
result = value1.filter(item => value2.indexOf(item) !== -1).length;
return result
}
if (!fun(array)) {
console.log("无相同的值");
} else {
console.log("有相同的值");
}
判断两个数组是否有相同的值
let arr1 = [1, 2, 3, 4, 5]
let arr2 = [9, 8, 7, 6, 5]
let res = arr1.filter(item => arr2.indexOf(item) !== -1).length
console.log(res);
if (!res) {
console.log("没有相同的值")
} else {
console.log("有相同的值");
}
扩展：可以尝试一下判断两个数组相同值都有哪些，提出来
