JavaScript Array unshift

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JavaScript Array unshift

In this Tutorial we want to describe you a code that helps you in understanding JavaScript Array unshift.

In this Tutorial we want to describe you a code that helps you in understanding JavaScript Array unshift.

JavaScript Array unshift

     

In this Tutorial we want to describe you a code that helps you in understanding JavaScript Array unshift.The code declare an  array variable instantiate  array object, this object hold the element. The for loop run the script till variable i is less than array length. The document. write print the element in an array before applying unshift method.

array.unshift ( AA,BB) - This method  add  elements to the beginning of an array and returns you  the new length.

Similarly this method add element AA,BB to the beginning of an array object elements.

Again, the for loop run the script till the variable i is less than the array length. The document. write return you an array after applying unshift method.

JavaScriptArrayUnshift.html

<html>
  <head>
  <title>JavaScript Array unshift</title>
  <h1>JavaScript Array unshift</h1>
  <hr></hr>
  <script language="javascript" type="text/javascript">
  var array=new Array();
  array[0]="Rose";
  array[1]="India";
  array[2]=".net";
  array[3]="Rohini";
  document.write("<b>"+"Array before applying unshift method: "+"</b>"+"<br>");
  for(i=0;i<array.length;i++){
  document.write(array[i]+"<br>");
  }
  </script>  <hr></hr> 
  <script> 
  array.unshift("AA","BB");
  document.write("<b>"+"Array after applying unshift method: "+"</b>"+"<br>");
  for(i=0;i<array.length;i++){
  document.write(array[i]+"<br>");
  }
  </script> 
  </head>
  <body>
     </body>
</html>

Output of the program

Download source code

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