Mostrar los tags: expresión regular

validarTelefono("12-123-123-123") # True

validarTelefono("12-123-123-12") # False

validarTelefono("2-123-123-123") # False

validarTelefono("12-13-123-123") # False

validarTelefono("12-123-1a3-123") # False

validarTelefono("12/123-123-123") # False

validarTelefono("12-123123-123") # False

capitalize("el cielo es azul"); // El cielo es azul

capitalize("a"); // A

capitalize([]); // ""

capitalize("la casa azul", true); // La Casa Azul

capitalize("la CASA azul", true); // La CASA Azul

eliminarEspacios("the big house"); # "thebighouse"

eliminarEspacios(""); # ""

eliminarEspaciosConsecutivos("the          big  house"); # "the big house"

eliminarEspaciosConsecutivos(""); # ""

hasNumber("la casa!!"); # False

hasNumber(""); # False

hasNumber("la c3asa!!"); # True

hasNumber("0la c9asa!!"); # True

hasNumber("125"); # True

hasNumber(12345); # True

countNumbers("la casa!!"); # 0

countNumbers(""); # 0

countNumbers("la c3asa!!"); # 1

countNumbers("0la c9asa!!"); # 2

countNumbers("125"); # 3

countNumbers(12345); # 5

hasNumber("la casa!!"); // false

hasNumber(""); // false

hasNumber("la c3asa!!"); // true

hasNumber("0la casa!!"); // true

hasNumber("125"); // true

hasNumber(125); // true

getVowels("") # {a: 0, e: 0, i: 0, o: 0, u: 0}

getVowels("zzzz") # {a: 0, e: 0, i: 0, o: 0, u: 0}

getVowels("the bIg house") # {a: 0, e: 2, i: 1, o: 1, u: 1}

str="Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum."

getVowels(str) # {a: 29, e: 59, i: 38, o: 25, u: 17}

getVocals("el amigo de el"); // ['a', 'e', 'i', 'o']

getVocals("Informatica"); // ['a', 'i', 'o']

getVocals(""); // []

getVocals("el amigo de el") # ['a', 'e', 'i', 'o']

getVocals("Informatica") # ['a', 'i', 'o']

getVocals("") # []