cf.completefrontend

Write the codeEasy

Write getType(value) that returns a precise type name, telling null, arrays, and dates apart.

getType(value) returns "null" for null.

For every other primitive, and for functions, it returns what typeof returns: "number", "string", "function", and so on.

For other objects, it returns the name of the built-in type in lowercase, like "array", "date", "regexp", or "map". Plain objects and class instances give "object".

Write this
function getType(value) {
  // your code
}
 
// getType(null);                   // "null"
// getType(NaN);                    // "number"
// getType(() => {});               // "function"
// getType([1, 2]);                 // "array"
// getType(new Date());             // "date"
// getType(new Map());              // "map"
// getType({});                     // "object"
// getType(new (class Point {})()); // "object"

The answer

Write it yourself first. Then compare it with a reference solution and the checks it passes.

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