"nullish-coalescing-operator" Code Answer's
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nullish-coalescing-operator
Mystic Dev
on Jan 06, 2021
null || undefined ?? "foo"; // raises a SyntaxError
true || undefined ?? "foo"; // raises a SyntaxErrorSource: developer.mozilla.org
nullish-coalescing-operator
Mystic Dev
on Jan 06, 2021
let foo = { someFooProp: "hi" };
console.log(foo.someFooProp?.toUpperCase() ?? "not available"); // "HI"
console.log(foo.someBarProp?.toUpperCase() ?? "not available"); // "not available"
Source: developer.mozilla.org
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