Update Index.js with optimized code.

[Ishaan28malik]

Description :

Code cleaning and optimization.

Please ensure Checkmark the following :

• [x] - Tested Localy
• [x] - Checked in IE11 and Firefox
• [x] - Checked in mobile
• [ ] - Backend work
• [x] - Frontend work
• [ ] - Bug Fixes
• [x] - Enhancements

[nodece]

@Ishaan28malik Thank you for your contribution. It seems that it is meaningless to use ternary operators instead, so close the PR.