JavaScript set input value in while loop -

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the code below:

v1 = document.getelementbyid('double').value; while (v1 < 10) {     v1++;                    = new date().gettime();     while(new date().gettime() < + 1000){}     document.getelementbyid('inputarea').value = v1; }

inputarea text box has 1 number, want increase number 1 ever second until reaches 10. problem inputarea shows last value 10, supposed ....7, 8, 9 10.

you can use setinterval

var timerid = setinterval(function(){    v1 = parseint(document.getelementbyid('double').value,10);    if(v1 == 10){      clearinterval(timerid)    }    else{      document.getelementbyid('double').value = (v1+1)    }  },1000);
<input id="double" value="1" />


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