I have to get 1st input of the Number of Test Cases:
if the test case is got input of 1, Then I need to get 2 more inputs.
if the test case is got input of 2, Then I need to get 4 more inputs.
Is it possible to use STDIN for dynamic input using 1st input in NodeJS?
Sure, this is possible. In NodeJS, you could use the built-in readline module. Nothing prevents you from building logic so that a dynamic number of inputs are read. For example, something like this might help you:
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout
});
rl.question("How many entries do you need to create? ").then(async answer => {
const numberOfEntries = Number(answer);
// Validate input
if (!Number.isInteger(numberOfEntries) || numberOfEntries < 1)
throw new Error("Invalid number of entries");
// Read dynamic number of inputs
const entries = [];
for (let i = 0; i < numberOfEntries; i++) {
const foo = await rl.question("Foo? ");
const bar = await rl.question("Bar? ");
entries.push({foo, bar});
console.log(`Entry ${i} with foo = ${foo} and bar = ${bar}`);
}
rl.close();
});