javascript
Optional Chaining on Javascript Object
The optional chaining can be implemented using ?. It stops evaluation of expression after ? sign. It will return undefined if the expression retuns undefined before the ? sign.
const user = {
admin: {
name: "John Deo"
}
};
user.admin?.name;
// "John Deo"
user.admi?.name;
// undefined
user.admi.name
// TypeError: Cannot read property 'name' of undefinedWas this helpful?
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