A simple js method for filtering array repeated Elements

Js Filter Array repeated elements:

Function filterArray (str, array) {// This function filters repeated elements in the array and does not allow null values to be inserted. The function returns an array.

Var isnull = false;
If (str = "" | str = null | str = 'undefined '){
Isnull = true;
}
Var newnum = 0;
Var newarray = [];
Var num = array. length;
If (num = 0 ){
If (! Isnull ){
Newarray [num] = str;
}
} Else {
For (var m = 0; m <num; m ++ ){
If (str = array [m]) {
Break;
} Else {
Newarray [newnum ++] = array [m];
}
}
If (! Isnull ){
Newarray [newnum ++] = str;
}
}
Return newarray;
}

Original article: http://www.52blogger.com/archives/588