How to sort array in descending order using Lo-Dash?

Question

I have an array from a push items and when I display using Lo-Dash, it shows in ascending order.

Here's my code:

<h3>Sorted Array</h3>
<ul id="sorted"></ul>

// Sample array.
var array = [];

// Utility function used to push data into the
// array while maintaining the sort order.
function sortedPush( array, value ) {
    array.splice( _.sortedIndex( array, value ), 0, value );
}

// push items.
sortedPush( array, "20151124_nov_24_2015" );
sortedPush( array, "201511011_nov_1_2015" );
sortedPush( array, "20160118_jan_18_2016" );
sortedPush( array, "201508031_aug_3_2015" );

// The ul for output.
var list = document.getElementById( "sorted" );

// Display the sorted array.
_.each( array, function( item ) {
    var li = document.createElement( "li" );
    li.appendChild( document.createTextNode( item ) );
    list.appendChild( li );
});

Output:

Sorted Array

201508031_aug_3_2015
201511011_nov_1_2015
20151124_nov_24_2015
20160118_jan_18_2016

Now, how can I display this in descending order?

Expected output should be:

20160118_jan_18_2016
20151124_nov_24_2015
201511011_nov_1_2015
201508031_aug_3_2015

Here's the fiddle - https://jsfiddle.net/vLvv6ogf/1/

// Sample array.
var array = [];

// Utility function used to push data into the
// array while maintaining the sort order.
function sortedPush(array, value) {
  array.splice(_.sortedIndex(array, value), 0, value);
}

// push items.
sortedPush(array, "20151124_nov_24_2015");
sortedPush(array, "201511011_nov_1_2015");
sortedPush(array, "20160118_jan_18_2016");
sortedPush(array, "201508031_aug_3_2015");


// The ul for output.
var list = document.getElementById("sorted");

// Display the sorted array.
_.each(array, function(item) {
  var li = document.createElement("li");
  li.appendChild(document.createTextNode(item));
  list.appendChild(li);
});

<h3>Sorted Array</h3>
<ul id="sorted"></ul>

Appreciate any help on this. Thank you.

Piyush Patel · Accepted Answer · 2017-07-25 11:52:27Z

3

Simple sort the array in ascendent order then reverse it

_.reverse(array)

here is the lodash documentation link _.reverse(array)

answered Jul 25, 2017 at 11:52

Piyush Patel

1,24015 silver badges19 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Adam Boduch · Accepted Answer · 2016-02-03 22:19:32Z

1

If your array is sorted in ascending order, and you want the output in descending order, just replace your each() call with eachRight(). This will iterate over the array in the opposite direction.

answered Feb 3, 2016 at 22:19

Adam Boduch

11.2k3 gold badges32 silver badges38 bronze badges

Collectives™ on Stack Overflow

How to sort array in descending order using Lo-Dash?

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related