Function are subprograms which are used to compute a value or perform a task.
Type of Function
– Library or Built-in functions Ex: – valueOf( ) , write( ), alert( ) etc
– User-defined functions
Example
Rules
- Function name only starts with a letter, an underscore ( _ ).
- Function name cannot start with a number.
- Do not use reserved keywords. e.g. else, if etc.
- Function names are case-sensitive in JavaScript.
How Function Call Works
The code inside a function isn‟t executed until that function is called.
I’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark, stock market tips at Stocks Mantra, health and fitness guidance at My Medic Plus, product reviews at TrueReviewNow , and SEO strategies at Wizbrand.
Do you want to learn Quantum Computing?
Please find my social handles as below;
Rajesh Kumar Personal Website
Rajesh Kumar at YOUTUBE
Rajesh Kumar at INSTAGRAM
Rajesh Kumar at X
Rajesh Kumar at FACEBOOK
Rajesh Kumar at LINKEDIN
Rajesh Kumar at WIZBRAND
Find Trusted Cardiac Hospitals
Compare heart hospitals by city and services — all in one place.
Explore Hospitals
