Shortcut assignment in go excluding empty/nil value

Question

This can be done in python / javascript:

# Python:
a = ""
b = "test"
c = a or b # test

// javascript
a = "";
b = "test";
c = a || b; // test

Can the same be accomplished in go without doing some conditional block? The only way I'm able to do this so far is with conditional blocks...

a := ""
b := "test"
var c
if a {
    c = a
} else {
    c = b
}

I think this is answer is going to be "no, this cannot be done", but I figured I would ask just in case I'm wrong. The example here is simplified. The variables a and b could have been defined long ago...

A if statement is required. – Charlie Tumahai Mar 01 '18 at 03:54 — Charlie Tumahai, Mar 01 '18 at 03:54

score 1 · Accepted Answer · answered Mar 01 '18 at 03:36

1

From golang FAQ, There is no ternary testing operation in Go. You may use the following to achieve the same result:

if expr {
    n = trueVal
} else {
    n = falseVal
}

answered Mar 01 '18 at 03:36

lorneli

252
3
11

Here is a similar question https://stackoverflow.com/questions/19979178/what-is-the-idiomatic-go-equivalent-of-cs-ternary-operator – lorneli Mar 01 '18 at 03:45

Shortcut assignment in go excluding empty/nil value

1 Answers1