create a button that emails the google sheet - email

Question

In a google sheet that I've created, I have a place where I can put in an email address (in my sheet, it is actually located at cell I6. What I'm needing to do is create a script that will pull this email address out of I6 and then email the sheet to that email. I don't want to email every sheet, just that page that has the button I've created.
The main script I have thus far is:
function sendemail() {
MailApp.sendEmail("email address", "subject", "body");
}
Where it says "email address", I want it to pull the contents of cell I6. What is the coding to do this?
Any help is greatly appreciated.
Thanks,
Cliff

Answer 1

Since UI Service is deprecated, the only option is to assign a script to an image or drawing.
I've followed this tutorial - Google Spreadsheet Button to Run Scripts
Here is the code snippet:
function highFive(){
Browser.msgBox("High Five!");
}
Once I click the image this will happen:
Also in the tutorial, there is a snippet regarding sending an email with the button:
function email(){
var rng = SpreadsheetApp.getActiveSheet().getActiveRange()
var email = rng.getValues()[0];
GmailApp.sendEmail(email[0], email[1], email[2]);
}
Hope this helps.