Doing multiple lines of code on one line

I’m trying to do multiple lines of code on one line. I am using conditional ternary (statement ? true : false;) and i wanted to know how i could do things that i would normally do on multiple lines, (change variable values simple) on one.

My geometry program is going to have have a lot of if statements, and i can cut that down 75% if i just can do multiple simple things per line.

Its not complicated code, i’m really only going to be changing the value of 3 variables at most.

I was thinking:

true === true ? this = that, that = 0 : console.log("false")