In practical applications, we may often need to remove duplicate elements in the array. The following is the implementation of JavaScript array deduplication:
<script language="javascript">
<!--
/* Method to determine whether there is an element in the array*/
function isExistInArr(_array, _element){
if(!_array || !_element) return false;
if(!_array.length){
return (_array == _element);
}
for(var i=0; i<_array.length; i++){
if(_element == _array[i]) return true;
}
return false;
}
/*Methods to remove duplicate elements in array*/
function distinct(_array){
if(!_array || !_array.length) return _array;
var newArray = new Array();
for(var i=0; i<_array.length; i++){
var oEl = _array[i];
if(!oEl || (newArray, oEl)) continue;
newArray[] = oEl;
}
return newArray;
}
var origArr = [1,2,3,4,1,4,1,3];
origArr = distinct(origArr);
alert(origArr);
//-->
</script>
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