排序的Javascript对象数组

Question

我有以下代码：

private restorePurchases(): Promise<any[]> { 
    return new Promise<any[]>((resolve) => { 
     let data: any[] = 
     [ 
      { 
      productId: 'com.thewhozoo.prod.message.30days', 
      date: 1499869861370 
      }, 
      { 
      productId: 'com.thewhozoo.prod.message.3days', 
      date: 1498869861369 
      }, 
      { 
      productId: 'com.thewhozoo.prod.message.10days', 
      date: 1499869851369 
      }, 
      { 
      productId: 'com.thewhozoo.prod.message.3days', 
      date: 1499869861369 
      } 
     ]; 

     resolve(data); 
    }); 
    } 

正如你所看到的，它返回一个数组。我想按date（升序）对数组进行排序。

this.restorePurchases().then((purchases: any[]) => { 
    purchases.sort(by date); 
}); 

任何建议欢迎。

Answer 1

请参阅如何Array.prototype.sort documentation。

this.restorePurchases().then((purchases: any[]) => { 
    purchases.sort((a, b) => a.date - b.date); 
}); 

const data = [ 
 
    { 
 
    productId: 'com.thewhozoo.prod.message.30days', 
 
    date: 1499869861370 
 
    }, 
 
    { 
 
    productId: 'com.thewhozoo.prod.message.3days', 
 
    date: 1498869861369 
 
    }, 
 
    { 
 
    productId: 'com.thewhozoo.prod.message.10days', 
 
    date: 1499869851369 
 
    }, 
 
    { 
 
    productId: 'com.thewhozoo.prod.message.3days', 
 
    date: 1499869861369 
 
    } 
 
]; 
 

 
console.log(data.sort((a, b) => a.date - b.date));