By Chuck Easttom
Convey. js Deep API Reference is your brief, concise consultant to specific. js APIs. this versatile Node. js net software framework offers a powerful set of positive factors for development unmarried, multi-page, and hybrid internet applications.
Through six to-the-point chapters, you will discover references for configurations, settings, environments, middleware, templating engines (including Consolidate. js), extract parameters, routing, request handlers, reaction, and streams.
Written via Azat Mardan, the writer of professional show. js and sensible Node. js, you'll find this brief, concise advisor critical to your show. js paintings.
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You can use the following statement to ask the user for a number: var number = parseInt(prompt("Enter a number:", 0)) or var number = prompt("Enter a number:", 0) number = parseInt(number) The generic form of this function is prompt(message[, inputDefault]). You can see that this function works by using the typeof operator for testing: var number = prompt("Enter a number:", 0) alert(number, " is a ", typeof number) // "... is a string" number = parseInt(number) alert(number, " is a ", typeof number) // "...
Rather than a simple OK button, the confirm box includes both OK and Cancel buttons. Like the alert box, confirm is also a method of the window object. This method returns a Boolean value, because there are two options. You can use confirmation boxes to ask the user a yes-or-no question, or to confirm an action. ") reply is assigned a true value if the user chooses OK, and false if the user selects Cancel. The generic form of this function is confirm(message). Prompt Boxes var name = prompt("Enter your name:", "anonymous") The method returns a value of null if the user chooses Cancel.