    

      

    

    :=-

************************************************

   :=-

       

var a= "JavaScript Strings";

alert(a.length);

     array.length

 string.length



************

        

************


   :=-

         

         

       string.chartAt()

         

var str="linger in",newstr="";

var a="First letter:"+str.charAt(0);

var z="Final letter:"+str.charAt(str.length-1);

for(var i=0;i<str.length;i++){

if(str.charAt(i)!="i")newstr+=str.charAt(i);

else newstr+="o"

}

var result="STRINGS\n\n";

result +="New string:"+newstr+"\n";

alert(result+a+"\n"+z);


   :=-

  "+"            

var num=99;

var flt=98.6;

var bool=true;

var str1="Although";

var str2="F is cited as \"body temperatrue\"";

var str3="\nthe";

var str4"range is from about 97 to";

var str5="F.";

alert(str1+flt+str2+str3+bool+str4+num+str5);



       :=-

  string.index       

      

               

           

             -1

  string.indexOf      @    

      

var str="mailme@domain.com";

var att=str.indexOf("@");

var dot=str.indexOf(".");

var hsh=str.indexOf("#");

var fmt=((att!=-1)&&(dot!=-1))?"valid":"invalid";

var res="Format is" +fmt;

res +="\n@ at" +att

res +="\nDot at" +dot

res +="\n\nHash is" +hsh

alert(res);


    :=-

       string.split

var str="JavaScript in easy steps";

var ss=str.split("")'

var bk="JavaScript in easy steps|Mike McGrath|$9.99";

var bks=bk.split("|");

var res="Topic :" +ss[0];

res +="\nTitle :" +bks[0];

res +="\nAuthor :" +bks[1];

res +="\nPrice :" +bks[2];

alert(res);


   :=-

          

  string.substring

           

       

          string.substr


var str="JavaScript in easy steps";

var sub1=str.substring(14,19)+str.substring(0.11)

var sub2=str.substr(14,5)+str.substr(0.10);

var res="Substring method :" +sub1;

res +="\nSubstr method :" +sub2;

alert(res);


    :=-

object.toString()            

          

               

            

        


var num=9;

var nostr=num+9;

var adstr=num.toString()+9;

var img=new Image();

var res="No strings :"+nostr;

res +="\nAdded strings :"+adstr;

res +="\nImage :" +img.toString();

alert(res);


   :=-

          

string.toUpperCase()     string.toLowerCase

var entry=document.forms[0].textfield.value;

if(entry.toLowerCase() =="castle")alert("Accepted");

else alert("Refused");


      :=-

        

parseInt()    parseFloat()

parseInt()           

parseFloat()         

     

isNaN()       


var str="66.6% PASS RATE";

var res="Integer :" +parseInt(str);

var res="\nFloat :" +parseFloat(str);

var badstr="PASS RATE66.6%";

res +="\nNon-numeric :"+parseInt(badstr);

res +="\nFound :";

res +=isNaN(parseInt(badstr))?"Character":"Number";

alert(res);


      :=-

eval()                

      


var inputname="textfield";

var inputtext="\"JavaScript Text\"";

eval(document.forms[0]."+inputname+".value="+inputtext");



    :=-

string.ChartCodeAt()           

string.fromChar Code()            


var str="Code Fun";

var enc="";

var unc="";

for(var i=0;i< str.length;i++){

enc += str.charCodeAt(i)+",";

}

var ss=enc.split(",");

for(var i=0;i< ss.length;i++){

unc +=String.fromCharCode(ss[i]);

}

alert("Encoded:"+enc+"\nUnencoded:"+unc);


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