If I have two Firebase functions (fire1 and fire2) that share a helper function (doSum), will deploying with firebase deploy --only functions:fire1 change the environment of fire2?
If I have two Firebase functions (fire1 and fire2) that share a helper function (doSum), will deploying with firebase deploy --only functions:fire1 change the environment of fire2?
No, each function is fully indepndent of each other. Each deployed function gets its own copy of the entire deployed project. A deploy of a single function will not in any way affect the code deployed for any other function.