Checks if the provided value is an object created by the Object constructor.
typeof
to check if it is an object and Object.prototype.constructor
to make sure the constructor is equal to Object
.const isPlainObject = val =>
!!val && typeof val === 'object' && val.constructor === Object;
isPlainObject({ a: 1 }); // true
isPlainObject(new Map()); // false
JavaScript, Type
Checks if the a value is an empty object/collection, has no enumerable properties or is any type that is not considered a collection.
JavaScript, Type
Checks if an object looks like a Promise
.
JavaScript, Type
Checks if the provided argument is array-like (i.e. is iterable).