Basic Types

@param {string} name → A string parameter
@param {number} age → A number parameter
@param {boolean} isActive → A boolean parameter
@param {void} → No return value
        
Array & Object Types

@param {Array} items → A generic array
@param {string[]} names → An array of strings
@param {number[]} scores → An array of numbers
@param {Object} user → A generic object
@param {{ id: number, name: string }} user → An object with specific properties
Function & Callback Types
@param {Function} callback → A function parameter
@param {(num: number) => void} callback → A function taking a number and returning nothing
Return Types
@returns {string} → Returns a string
@returns {number} → Returns a number
@returns {void} → Returns nothing
@returns {Promise<string>} → Returns a Promise resolving to a string

Other Useful Types

@param {any} value → Accepts any type
@param {null} data → A parameter that can be null
@param {undefined} value → A parameter that can be undefined
          
HTML Element Types 
          
@param {HTMLElement} element → Any HTML element
@param {HTMLDivElement} div → A <div> element
@param {HTMLButtonElement} button → A <button> element
@param {HTMLInputElement} input → An <input> element
@param {HTMLFormElement} form → A <form> element