Ejercicios usando funciones JavaScript

Completa los siguientes ejercicios.

Name		Name	Last commit message	Last commit date
Latest commit History 1 Commit
README.md		README.md
ex1.js		ex1.js
ex2.js		ex2.js
ex3.js		ex3.js
ex4.js		ex4.js
ex5.js		ex5.js
index6.html		index6.html
index7.html		index7.html
index8.html		index8.html
play.js		play.js
play2.js		play2.js
play3.js		play3.js
script-externo.js		script-externo.js

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