Question 1 of 30
In a JavaScript application, a developer is tasked with creating a function that processes user input from a form. The function needs to validate the input to ensure it is a valid number, and if it is not, it should return a specific message. The developer uses the following code snippet:
javascript
ction validateInput(input) {
(typeof input === 'number' && !isNaN(input)) {
urn "Valid number: " + input;

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