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

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5 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Cual es el resultado de:
isNaN("4") ?
undefined
false
true
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Que devuelve
"".length ?
0
undefined
null
2
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Cual de los siguientes valores hacen que isNaN(bar) sea true?
true
"1 3"
"feb14"
" "
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como valido que el numero ingresado sea mayor a 0?
do {
var foo = parseInt(prompt(""));
} while([]);
!(foo < 0)
!(foo > 0)
(foo > 0)
(foo <= 0)
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Como valido que una variable este dentro de un rango (entre min y max)?
do {
var bar = parseInt(prompt(""));
} while([]);
(min < bar && bar < max)
!(min < bar && bar < max)
!(min > bar || max < bar)
(min > bar && bar > max)
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