Home Discussion Discuss: JavaScript array remove duplicate

  • good logickiran June 29, 2011 at 6:29 PM

    thank you, giving this code

  • javascriptKumar December 20, 2013 at 5:08 PM

    i have diff one <!DOCTYPE html> <html> <head> <script> function checkDuplicate(){ alert('inside into function'); var mydata = document.getElementById("test").value; alert(' my data : '+mydata); var N = new Array(); N= mydata.split(" "); alert('array length is : '+N.length); var duplicateVar=''; for (var i = N.length-1; i>=0 ; i--) { //alert('n[i] : '+N[i]); var count=0; for(var j = 0; j<N.length;j++){ alert("Ni : "+N[i]+ " ## "+"Nj : "+N[j]) if(N[i]==N[j]){ count = count+1; } if(count>1){ alert("duplicate found : "+N[j]); document.getElementById("duplicate").value=document.getElementById("duplicate").value+" "+N[j]; alert('j is going to deleted :'+N[j]); N.splice(j,1); alert('Now length is :'+N.length); } } } } </script> </head> <body> <form name="myform" onSubmit="return checkDuplicate()"> <input type="text" name="test" id="test" value="" size="50"><br> <input type="text" name="duplicate" id="duplicate" value="" size="50"><br> <input type="submit" name="submit" value="SUBMIT" > </form> </body> </html>

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