Category Archives: JavaScript

string and integer variable operation using Javascript

<!DOCTYPE html>   <html lang=”en”> <head>     <title>Chapter 2, Example 1</title> </head> <body>     <script>         var myFirstVariable;           myFirstVariable = “Hello”;         alert(myFirstVariable);           myFirstVariable = 54321;         alert(myFirstVariable);     </script> </body> </html> Key source : Beginning JavaScript, 5th Edition (wrox)

Adding text to html element using JavaScript

<!DOCTYPE html> <html lang=”en”> <head> <meta charset=”utf-8″ /> <title>Chapter 1, Example 3</title> </head> <body> <code id=”results”></code> <script> document.getElementById(“results”).innerHTML = “Hello World!”; </script> </body> </html> Key source : Beginning JavaScript, 5th Edition (wrox)

settings with color and alert messages using Javascript

<!DOCTYPE html> <html lang=”en”> <head> <meta charset=”utf-8″ /> <title>Chapter 1, Example 2</title> </head> <body bgcolor=”white”> <p>Paragraph 1</p> <script> // script block 1 alert(“First Script Block”); </script> <p>Paragraph 2</p> <script> // script block 2 document.bgColor = “red”; alert(“Second Script Block”); </script> <p>Paragraph 3</p> </body> </html>   Key source : Beginning JavaScript, 5th Edition (wrox)

Hacking with a JavaScript Program

var drawCats = function (howManyTimes) { for (var i = 0; i < howManyTimes; i++) { console.log(i + " =^.^=); } }; drawCats(11); VM455:4 Uncaught SyntaxError: Unexpected token ILLEGALmessage: "Unexpected token ILLEGAL"stack: (…)get stack: function () { [native code] }arguments: nullcaller: nulllength: 0name: ""prototype: StackTraceGetter__proto__: function Empty() {}set stack: function () { [native code] }arguments: …

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