Sorting a JSON array according one property in JavaScript

These days JavaScript is the foundation of very new technologies, Front-End frameworks, etc. One of the most commonly work in JavaScript is working with JSON arrays. In this article we’re going to sort an JSON array according a specific property.

Suppose we have a JSON array and we want to sort it by id or pId:

var items = [{id:2, title:"...", pId:62},
             {id:1, title:"...", pId:43},
             {id:4, title:"...", pId:74},
             {id:9, title:"...", pId:35},
             {id:5, title:"...", pId:81}];

To do this, write a function as below and call it in array.sort():

function sortByProperty(property){  
   return function(a,b){  
      if(a[property] > b[property])  
         return 1;  
      else if(a[property] < b[property])  
         return -1;  
  
      return 0;  
   }  
}

Final step is call above function in array.sort() :

items.sort(sortByProperty(“pId”)); //sort according to pId 
 
items.sort(sortByProperty(“id”)); //sort according to id