JavaScript Array.sort with examples / Gaurang Jadia

I was reading a social post and found that Array.sort() works great across all the browser. I thought to write small demo to show powerful compare function to sort object type array on given property.

Example: Array.sort()

Also, Array.sort() is a string sort by default! Should be used for string like type only!

var unorderedArray = [1, 2, 22, 11, 55];
var orderedArray =  unorderedArray.sort();
console.log(orderedArray);

var unorderedArray = [1, 2, 22, 11, 55];

var orderedArray = unorderedArray.sort();

console.log(orderedArray);

So, you can not use for Array.sort() for numeric sort!

But, you can use compare callback function to work with Object type Array very efficiently.

Example: Array.sort(compareFunction)

var unorderedObjectArray = [
        { Name: "Gaurang", Last: "Jadia", Zipcode: 91801 },
        { Name: "Steve", Last: "Jobs", Zipcode: 95014 },
        { Name: "Bill", Late: "Gates", Zipcode: 98052  }
];

var orderedObjectArray = unorderedObjectArray.sort(function(x, y) {
        if (x.Name &lt; y.Name) {
                return -1;
        }
        else if (y.Name &lt; x.Name) {
                return 1;
        }
        else {
                return 0;
        }
});

console.log(orderedObjectArray);

var unorderedObjectArray = [

{ Name: "Gaurang", Last: "Jadia", Zipcode: 91801 },

{ Name: "Steve", Last: "Jobs", Zipcode: 95014 },

{ Name: "Bill", Late: "Gates", Zipcode: 98052 }

];

var orderedObjectArray = unorderedObjectArray.sort(function(x, y) {

if (x.Name < y.Name) {

return -1;

}

else if (y.Name < x.Name) {

return 1;

}

else {

return 0;

}

});

console.log(orderedObjectArray);

Read: https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array/sort?redirect=no

Gaurang Jadia

Nothing is permanent except change

JavaScript Array.sort with examples

Example: Array.sort()

Example: Array.sort(compareFunction)

Leave a Reply