I am trying to solve a very simple exercise, they gave me 2 variables a and b, if a is falsy so we will assign b to result.
We must not use the If statement and the ternary operator.
Here is the suggestions they gave me :
function run(a, b) {
let result
...
return result
}
Could you please give me some ideas ? Thank you very much for your time.
Use the logical OR operator:
const result = a || b;
JavaScript logical operators use short-circuit evaluation, so b will only be evaluated if a is falsy.
In a snippet:
function run(a, b) {
return a || b;
}
console.log(run('a', 'b'));
console.log(run('', 'b'));
console.log(run(0, 'b'));