Nodejs code to convert Bitcoin Addresses into ZCash t-Addresses, and vice-versa.
The same private ('spending') key that controls funds of one address can also control funds of the other, provided it is exported from its original wallet software and imported to wallet software for the alternate system.
Use at your own risk. Before relying on any such converted address to receive funds, it would be prudent to verify that:
* your private key is available to you;
* that private key can be imported into the alternate-system wallet of your choice; and...
* that wallet-system reports the same public address as this conversion