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Given a string, how is the total number of alphabets and numerics contained, calculated using javascript?<br />
<br />
var strline =&quot;Testing123&quot;;<br />
var numbers=0;<br />
var alphas =0;<br />
<br />
for (var i=0; i&lt;strline.length; i++)<br />
{<br />
&nbsp; &nbsp; if(strline.charAT(i) == number)numbers++;<br />
&nbsp; &nbsp; if(strline.charAT(i) == alphabet)alphas ++;<br />
<br />
}<br />
<br />
alert (&quot;Contains &quot;&nbsp;+ numbers + &quot;&nbsp;number and &quot;+ alphas + &quot;&nbsp;alphabet characters&quot;);<br />
<br />
Please advice. 
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Given a string, how is the total number of alphabets and numerics contained, calculated using javascript?

var strline ="Testing123";
var numbers=0;
var alphas =0;

for (var i=0; i<strline.length; i++)
{
    if(strline.charAT(i) == number)numbers++;
    if(strline.charAT(i) == alphabet)alphas ++;

}

alert ("Contains " + numbers + " number and "+ alphas + " alphabet characters");

Please advice. 

Calculate the no of alphabets in a string

JavaScript is a dynamic, object-based language commonly used for client-side scripting in web browsers. Recently, server side JavaScript frameworks have also emerged. JavaScript runs on nearly every operating system and  in almost every mainstream web browser.