Public and Private Methods in JavaScript

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Public and Private Methods in JavaScript

Public Members can be accessed anywhere using the "." notation.

Private Members can only be accessed within a constructor and public method.

Public methods and variables are declared using the "this" keyword like "this.variableName".

A Public method is accessed using a constructor; this technique is usually used to initialize public instance variables.

var objPublicPrivateClassg = new PublicPrivateClass();

Code

HTML Code

Calling a Public Method:

<script type="text/javascript">
function CallMethod() {
try {
var objPublicPrivateClassg = new PublicPrivateClass();
//InitializePageControlEvents is Public method
objPublicPrivateClassg.publicMethods.InitializePageControlEvents();
}
catch (err) {
alert(err.message);
}
}
</script>

HTML Code

Calling a Public Method:

<script type="text/javascript">
function CallMethod() {
try {
var objPublicPrivateClassg = new PublicPrivateClass();
//InitializePageControlEvents is Public method
objPublicPrivateClassg.publicMethods.InitializePageControlEvents();
}
catch (err) {
alert(err.message);
}
}
</script>

Output

<script type="text/javascript">
function CallMethod() {
try {
var objPublicPrivateClassg = new PublicPrivateClass();
//InitializePageControlEvents is Private method
objPublicPrivateClassg.privateMethods.PrivateTestMethod();
}
catch (err) {
alert(err.message);
}
}
</script>

Output