Javascript Map If Not Undefined: If the key exists in. Web syntax the.get () method accepts a key parameter and checks it against a map object. Web returns the value associated to the passed key, or undefined if there is none.
Javascript Map If Not Undefined
Web the result of map () is an array of all the returned values. In that case, the function returns undefined, what. Web if it is undefined, it will not be equal to a string that contains the characters undefined, as the string is not undefined.
Javascript Map If Not Undefined: Web you aren't returning anything in the case that the item is not a string. Const mymap = new map(); Web the result of map () is an array of all the returned values.