signum.js

 /**signum

A signum function returns 1 for numbers greater than zero and -1 for numbers less than zero

and 0 for an input of 0. Write a signum implementation that takes a float N and returns

an integer.

Input

One line containing a decimal number.

N

Output

One integer, denoting the output value.

Example

Input:

-0.87

Output:

-1

*/

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

let fs = require("fs");

let data = fs.readFileSync(0, 'utf-8');

let idx = 0;

data = data.split('\n');

function readLine() {

idx++;

return data[idx - 1];

}

function signum(a) { // declaring the signum function ,a is the parameter

if (a > 0)

return 1

else if (a < 0)

return -1

else if (a == 0)

return 0

}

const integer = signum(parseFloat(readLine())); // -0.87 calling invoking the function signum

//or

//console.log(signum(integer)) // directly consoling and invoking a function togehter.

console.log(integer);

///////////////////////////////////////////////////////////////////////////////////////////////

TERMINAL: