
Arrays I
Authored by Fabrizio Carlassara
Science, Computers
University
Used 3+ times

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6 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Cual es la forma correcta de declarar un array?
let arr[];
let arr = [];
let arr = new Array[];
let arr = new Array(5);
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Como puedo agregar un elemento nuevo a un array?
let arr = [];
arr.pop(elemento);
arr.push(elemento);
arr.append(elemento);
arr[0] = elemento;
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Cual sera el valor del tercer elemento del array?
let arr = ["false", 6, undefined, null, true]
6
undefined
null
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Que obtengo en el alert?
let arr = [5, "false", true, 10];
arr[5] = "null";
alert(arr[4]);
null
"null"
undefined
Error
5.
FILL IN THE BLANK QUESTION
20 sec • 1 pt
Que falta en este bucle?
for(let i [] arr) {
// imprime los elementos
}
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Que falta en este bucle?
for(let i [] arr) {
// imprime los indices
}
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