AboutArrays.js: Completing "it should understand array length" - demonstrating assignment into the length property   var array= new Array(7);
AboutArrays.js: Completing "it should understand array length"
- demonstrating assignment into the length property
  var array= new Array(7);

  array[6]="blue";
  console.log(array.length);	//7
  console.log(array[6]);	//blue

  array.length=3;	        //chops array to that length
  console.log(array[6]);	//undefined

  console.log(array.length);	//3

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