Something Like that:
Find the missing number in Array
add this JS code.
JS
var myArray = [1,2,3,6,1]; //var myArray = [-1,-3]; var missingA; for(var i=1;i<=myArray.length;i++) { if(myArray[i-1] != i){ missingA = i; console.log(missingA) //alert(missing); break; } }
[codepen_embed height="265" theme_id="0" slug_hash="goJPXR" default_tab="js,result" user="pradeepanvi"]See the Pen Find the missing number in Array by Pradeep Kumar (@pradeepanvi) on CodePen.[/codepen_embed]
You can check console.