数组去重，属性相同的对象也算重复 Object.is使用

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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         }     } }