Quiz 28: Refresher: Callbacks
Question 1
Shows
'true'?JavaScript
function handle(callback) {
const result = [];
callback(result);
return result;
}
let it = [];
document.writeln(handle(it => it.push(1)).length === 1);Question 2
Shows
'true'?JavaScript
function handle(callback) {
const result = [];
callback(result);
return result;
}
document.writeln(handle(() => it.push(1)).length === 1);Question 3
Shows
'true'?JavaScript
function handle(callback) {
const result = [];
callback(result);
return result;
}
document.writeln(handle(it.push(1)).length === 1);Question 4
Shows
'true'?JavaScript
function handle(callback) {
const result = [];
callback(result);
return result;
}
document.writeln(handle(it => it.push(1)).length === 1);