Javascript Switch Case samples and lecture notes

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Javascript Code using getElementById and If Else Statement

  <!DOCTYPE html> <html> <head> <title> Form Elements and Attributes </title> <style> //format and styles div { margin-bottom: 10px; } label { display: inline-block; width: 200px; } fieldset { background: #e1eff2; } legend { padding: 20px 0; font-size: 20px; } </style> <body> <body> <h1> Determine Age Group </h1> <p> Enter your details : </p> <fieldset> <label> Enter your name </label> <input type =" text " onfocus =" this.value='' " name =" fname " id =" fname " value ="" /> <br> <!-- create input text box for name --> <label> Enter your age </label> <input type =" number " onfocus =" this.value='' " name =" age " i...
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Change Background Color using onkeydown keyboard event

<html> <head> Javascript Events</head> <body> <h2> Enter something here</h2> <input type="text" id="input1" onkeydown="keydownevent()"/>  <p id="display1"> <p id="display2"> <p id="display3"> <p id="display4"> <p id="display5"> <script> <!-- function keydownevent() { document.getElementById("input1");                 n=document.getElementById("input1").value;                 document.getElementById("display1").style.color="white";                   switch(Number(n))                  {                     case 1: document.getElementById("display1").style.background="pink";                       document.getElementByI...
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Window Screen Properties

 <!DOCTYPE html> <html> <body> <p id="demo"></p> <p id="demo1"></p> <p id="demo2"></p> <p id="demo3"></p> <p id="demo4"></p> <p id="demo5"></p> <script> document.getElementById("demo").innerHTML =  " screen width is " + screen.Width; document.getElementById("demo1").innerHTML =  "Available screen width is " + screen.availWidth; document.getElementById("demo2").innerHTML =  " screen height is " + screen.height; document.getElementById("demo3").innerHTML =  "Available screen height is " + screen.availHeight; document.getElementById("demo4").innerHTML =  " screen Depth is " + screen.colorDepth; document.getElementById("demo5").innerHTML =  "screen pixelDepth is " + screen.pixelDepth; </script> </body> <...
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