数组去重，属性相同的对象也算重复 Object.is使用

console.log(Object.is(+0,-0)) //false    但是控制台为true
console.log(Object.is(NaN,NaN)) // true  但是控制台是false
const uniqueArray = (arr)=>{const result = []outer:for(const item of arr){for(r of result){if(equals(r,item)){continue outer}}result.push(item)}
}
function isPrimitive(value){return value === null || (typeof value !== 'object' && typeof value !== 'function')
}
function equals(value1,value2){if(isPrimitive(value1) && isPrimitive(value2)){return Object.is(value1,value2)}const entries1 = Object.entries(value1)const entries2 = Object.entries(value2)if(entries1.length !== entries2.length){return false}for(const [key,value] of entries1){if(!equals(value,value2[key])){return false}}
}