Javascript Problem

Question

// Write a function that takes a string (a) as argument

// Extract the first half a

// Return the result

function myFunction(a){

return
}

What is the question?
Can anyone explain me please?.

Answer 1

function getSubStr(s){
let pos = parseInt( s.length/2 );
return s.substring(0, pos); // Extract the first half
}

let str = "sololearn";
console.log( getSubStr(str) );