Error when removing duplicates from Javascript Array [duplicate]

Answer 1

Hope this will be useful

var myArray = [100, 200, 100, 200, 100, 100, 200, 200, 200, 200];
var myArrayTrimmed = [];
myArray.forEach(function(item){
 if(myArrayTrimmed.indexOf(item) ==-1){
   myArrayTrimmed.push(item);
}

})
console.log(myArrayTrimmed);

Check this jsfiddle