Students check these javascript problems
- Add new elemts at the beginning of array
<html >
<body >
<script language="javascript" >
var scripts=new Array();
scripts[0]="PHP";
scripts[1]="ASP";
scripts[2]="JAVASCRIPT";
scripts[3]="HTML";
document.write(scripts.join("< br > "));
document.write("< br >---- NOW AFTER APPLYING unshift()---< br >");
scripts.unshift("VBSCRIPT","PERL");
document.write(scripts.join("< br >"));
</script >
</body >
</html > - Display Today's date and Time
< html >
< title >
< /title >
< body >
< script language="javascript" >
var d=new Date;
document.write("< b > "+d);
< /script >
< /body >
< /html > - Add an element to position 2 in an array
< html >
< body >
< script type="text/javascript" >
var fruits = ["HTML", "JSP", "PHP", "ASP"];
document.write("Removed: " + fruits.splice(2,0,"JAVASCRIPT") + "< br / >");
document.write(fruits);
< /script >
< /body >
< /html > - Concatenate two arrays
< html >
< body >
< h2 > concat arrays containig alphabets,numbers,symbols < /h2 >
<script language="javascript" >
var alphabets = ["a","b","c"];
var numbers = ["1","2"];
var symbols = ["@", "$","^"];
var alphano = alphabets.concat(numbers,symbols);
document.write(alphano);
< /script >
< /body >
< /html > - To concert today's date to string
< html >
< body >
< script language="javascript" >
var d =new Date();
document.write("in original form");
document.write(d +"< br/ > ");
document.write("(according to UTC) to string:");
document.write(d.toUTCString());
< /script >
< /body >
< /html > - TO remove first element of the array
< html >
< head >
< title > Removing the first Element < /title >
< script language="javascript" type="text/javascript" >
< !--
var x = new Array(1,2,3,4);
var firstElement = x.shift();
alert(firstElement);
alert(2);
alert(3);
alert(4);
alert(x);
//-->
< /script >
< /head >
< body >
< h1 > Removing the first Element < /h1 >
< /body >
< /html > - Replace character in a string
< html>
< body>
< script language="javascript" >
var str="LOGIN UR ID!";
document.write(str.replace(/ID/,"ACCOUNT"));
< /script >
< /body >
< /html > - Reverse order of elements in the array
< html >
< title > JavaScript array reverse() example < /title >
< body >
< h2 >
Example of reversing an array
< /h2 >
< script type="text/javascript" >
var arr = new Array(3);
arr[0]="1";
arr[1]="2";
arr[2]="3";
document.write("< b > Array before reversed is < /b >="+arr+"< br > ");
document.write("< b > Reversed array is < /b > ="+arr.reverse()+"<br > ");
< /script >
< /body >
< /html >
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