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What are Parameters? Parameters are variables used in programming that allow you to pass data or values into functions, methods, or procedures to enable them to perform tasks with varying inputs. When you define a function or method, you can specify parameters in its declaration, which are placeholders for the values that will be passed … Read more
IIFE (Immediately Invoked Function Expression) is a JavaScript function that runs as soon as it is defined.It is a design pattern which is also known as Self-Executing Anonymous Function and contains two major parts. The first is the anonymous function with lexical scope enclosed within the Grouping Operator (). This prevents accessing variables within the … Read more
Function Expression When we create a function and assign it to a variable, known as a function expression. Note: – You can‟t call function expression before the function definition. Function expressions in JavaScript are not hoisted, unlike function declarations. Anonymous Functions Anonymous functions allow the creation of functions that have no specified name. Can be … Read more
Variable Scope JavaScript has two scopes: – Global Local Global Scope A variable that is declared outside a function definition is a global variable, and its value is accessible and modifiable throughout your program. In a web browser, global variables are deleted when you close the browser window (or tab) but remain available to new … Read more
Keyword or Reserved words var delete for let brack super void case do static function new switch while interface catch else if package finally this with class enum default implements private throw tiled typeof const export import protected return true continue extends in instanceof public try debugger false In JavaScript, we do not need to … Read more
Variables A variable is an identifier or a name which is used to refer a value. A variable is written with a combination of letters, numbers and special characters _ (underscore) and $ (dollar) with the first letter being an alphabet. Ex- c, fact, b33, total_amount etc. Rules • Variable can contain combination of letters, … Read more
<script> – Opening Script Tag. src – It’s an attribute of the script. name.js – This is our script file, which we created. The code of javascript is written inside devops.js.In which DevOps is the file name, .js is the extension. Javascript has an extension of .js Type – This is also an attribute of … Read more
What was easy in any language was made core and what became difficult was made an advance. What happens in Core is of basic level and what happens in Advance is of upper-level. Object Oriented Progrmming Object-Oriented Programming is a Technic that solves the problem. In this, the code breaks the object. And you see … Read more
$_GET and $_POST is generally used in the forms to transfer data from one file to another file. Both the variables are kind of same except when we need to keep our data secure we use $_POST and generally in the form we use $_POST. We will see the explanation by a example: Form.html Testform.php … Read more
In this tutorial we will learn about declaring global and local variable in PHP. Initially we will see what is local variable and global variable with examples. Here if we see the variable is declared inside the function “local” so it will work inside the local function only until we return the value inside the … Read more