null + undefined
console.log(null === null); // true
console.log(undefined === undefined); // true
console.log(null + undefined === null + undefined); // false
// null + undfined equals NaN, and NaN isn't equal to itself :(
null + undefined
console.log(null === null); // true
console.log(undefined === undefined); // true
console.log(null + undefined === null + undefined); // false
// null + undfined equals NaN, and NaN isn't equal to itself :(
null undefined
Undefined used for unintentionally missing values.
Null used for intentionally missing values.
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