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I saw this for lots of other languages but not JavaScript.
I'm trying to do problems like: this (codechef.com) and of course the programs need to be able to read standard in like C++ and other languages do.
EDIT: Thanks for the answers. The primary reason I want this functionality is so I can answer the questions on CodeChef; Codechef sends multiple inputs to the files/programs that are the answers (and of course the programs have to respond in the required way for the answer to be correct).
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var a = readline(); the value which you give input will be stored in variable a. readline() : Reads a single line of input from stdin, returning it to the caller. You can use this to create interactive shell programs in JavaScript.
One popular way to read input from stdin is by using the Scanner class and specifying the Input Stream as System.in. For example: Scanner scanner = new Scanner(System.in); String userString = scanner. next(); int userInt = scanner.
In JavaScript, we use the prompt() function to ask the user for input. As a parameter, we input the text we want to display to the user.
stdin (0): The standard input stream, which is a source of input for the program. process. stdout (1): The standard output stream, which is a source of output from the program.
If you use node to act as an interpreter in the terminal, you can use this:
---- name.js ---- var readline = require('readline'); var rl = readline.createInterface({ input: process.stdin, output: process.stdout }); rl.question(">>What's your name? ", function(answer) { console.log("Hello " + answer); rl.close(); }); ----- terminal ---- node name.js If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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