[英]ProcessData Node.js stin/stdout) issues
Having a bit of trouble understanding how to run my code using a ProcessData wrapping function on hackerrank (node.js). 在理解如何使用hackerrank(node.js)上的ProcessData包装函数运行代码时遇到一些麻烦。 It seems I can't drop a function with the parameters I have in the ProcessData wrapper without getting back ~no response on stdout~.
似乎我不能在没有返回〜对stdout无响应〜的情况下,删除带有ProcessData包装器中参数的函数。 How do I pass their input (a string of integers) in to my function and get a response of some sort so I can debug?
如何将它们的输入(整数字符串)传递给函数,并获得某种响应,以便进行调试? Help would definitely be appreciated.
帮助将不胜感激。 Please see my function, the coding environment, the input & expected output below.
请在下面查看我的功能,编码环境,输入和预期输出。 Thanks!
谢谢!
For reference: https://www.hackerrank.com/challenges/array-left-rotation 供参考: https : //www.hackerrank.com/challenges/array-left-rotation
/*
Input Format
The first line contains two space-separated integers
denoting the respective values of (the number of integers)
and (the number of left rotations you must perform).
The second line contains space-separated integers
describing the respective elements of the array's initial state.
*/
/*Environment with my code, below (how do I pass input as an argument to this function??
console.log or return the data, and get a response for debugging?)*/
function processData(input) {
//Enter your code here
var rotate = function(num,turns,ar){
var store = ar.slice(0, turns);
for(var i=0; i<store.length; i++){
ar.shift();
ar.push(store[i]);
}
return ar;
};
}
process.stdin.resume();
process.stdin.setEncoding("ascii");
_input = "";
process.stdin.on("data", function (input) {
_input += input;
});
process.stdin.on("end", function () {
processData(_input);
});
You need use process.stdout.write
. 您需要使用
process.stdout.write
。 For example: 例如:
function processData(input) {
//Enter your code here
process.stdout.write('5 1 2 3 4');
}
instead use 代替使用
let input = 4; 让输入= 4; //4 is an integer variable
// 4是一个整数变量
function processData(input) { 函数processData(input){
//before outputing the integre you need to convert it to string using toString(); //在输出整数之前,您需要使用toString()将其转换为字符串;
process.stdout.write(input.toString().trim());
} }
//Note the output is converted to string //注意输出已转换为字符串
Output: 4 输出4
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