How to Include / Add Custom JavaScript into your WordPress Site

Name: Mobiz International
Address: 26/2, Jayamanna Place, Jayantha Road, Gampaha, Western Province, 11100, LK
Telephone: +94 77 385 2227
Price range: $$
Rating: 4.9

You might need to insert custom Javascript code to WordPress header of Footer when developing your own plugin.

There are couple of ways to do this.