814 B
814 B
importance: 5
Army of functions
The following code creates an array of shooters
.
Every function is meant to output its number. But something is wrong...
function makeArmy() {
let shooters = [];
let i = 0;
while (i < 10) {
let shooter = function() { // create a shooter function,
alert( i ); // that should show its number
};
shooters.push(shooter); // and add it to the array
i++;
}
// ...and return the array of shooters
return shooters;
}
let army = makeArmy();
*!*
// all shooters show 10 instead of their numbers 0, 1, 2, 3...
army[0](); // 10 from the shooter number 0
army[1](); // 10 from the shooter number 1
army[2](); // 10 ...and so on.
*/!*
Why do all of the shooters show the same value?
Fix the code so that they work as intended.