Merge pull request #139 from josemoracard/jose6-20.4-Map-data-types

Author: alesanchezr

exercises/20.4-Map-data-types/README.es.md

@@ -1,17 +1,20 @@
-# `20.4` `Map` y tipos de datos
-
-Algunas veces los arreglos vienen con valores mixtos y debes unificarlos en un solo tipo de datos.
+# `20.4` Map data types
 
 ## 📝 Instrucciones:
 
-1. Actualiza la función `array.map()` para que cree un nuevo arreglo que contenga los tipos de datos de cada elemento correspondiente al arreglo original.
+1. Modifica la función de `array.map()` para que cree un nuevo arreglo que contenga los tipos de datos de cada elemento del arreglo dado.
 
 ## 💡 Pista:
 
-+ Usa la función `typeof` para obtener el tipo de datos
++ Usa la función `typeof` para obtener el tipo de dato.
 
-## Resultado esperado:
+## 💻 Resultado esperado:
 
 ```js
-[string,string,... ,number,string,...]
+[ 
+  'string', 'string', 
+  'string', 'string', 
+  'string', 'string', 
+  'number', 'number' 
+]
 ```

exercises/20.4-Map-data-types/README.md

@@ -1,17 +1,20 @@
 # `20.4` Map data types
 
-Some times arrays come with mixed values and you need to unify them into only one data type.
-
 ## 📝 Instructions:
 
-1. Update the `array.map()` function to make it create a new array that contains the data types of each corresponding item from the original array.
+1. Update the `array.map()` function to make it create a new array that contains the data types of each item from the given array.
 
 ## 💡 Hint:
 
 + Use the `typeof` function to get the data type.
-## Expected result:
+
+## 💻 Expected result:
 
 ```js
-[string,string,... ,number,string,...]
+[ 
+  'string', 'string', 
+  'string', 'string', 
+  'string', 'string', 
+  'number', 'number' 
+]
 ```
-

exercises/20.4-Map-data-types/app.js

@@ -1,8 +1,8 @@
+let mixedDataTypes = ['1', '5', '45', '34', '343', '34', 6556, 323];
 
-let arrayOfStrings = ['1','5','45','34','343','34',6556,323];
-
-let newArray = arrayOfStrings.map(function(val){
-	return (val);
+let newArray = mixedDataTypes.map(function(item) {
+	// Your code here
+	return item
 });
 
-
+console.log(newArray);

exercises/20.4-Map-data-types/solution.hide.js

@@ -0,0 +1,8 @@
+let mixedDataTypes = ['1', '5', '45', '34', '343', '34', 6556, 323];
+
+let newArray = mixedDataTypes.map(function(item) {
+	// Your code here
+	return typeof(item);
+});
+
+console.log(newArray)

exercises/20.4-Map-data-types/test.js

@@ -20,7 +20,7 @@ test("You shouldn't delete the variable newArray", function(){
   expect(myVar).toBeTruthy();
 });
 
-test('The output in the console should match the one in the instructions!', function () {
+test('The output in the console should match the one in the instructions', function () {
     const _app = rewire('./app.js');
 
     let _arrayOfStrings = ['1','5','45','34','343','34',6556,323];

exercises/20.5-Map-arrays-of-objects/README.es.md

@@ -1,20 +1,20 @@
-# `20.5` "Mapeando" un arreglo de objetos
+# `20.5` Map array of objects
 
 El escenario más común para la función de mapeo es para simplificar los arreglos dados, por ejemplo:
 
 El algoritmo actual crea un arreglo con solo los nombres de las personas y los imprime en la consola.
 
 ## 📝 Instrucciones:
 
-1. Actualiza la función `map` para que cree un arreglo donde cada elemento contenga lo siguiente:
+1. Actualiza la función `simplifier` para que cree un arreglo donde cada elemento contenga lo siguiente:
 
-```js
-Hello, my name is Joe and I am 13 years old
+```text
+Hello, my name is Joe and I am 36 years old
 ```
 
-## Resultado esperado:
+## 💻 Resultado esperado:
 
-Debe quedar algo similar a esto, sin embargo las edades pueden variar.
+Debe quedar algo similar a esto, sin embargo, las edades pueden variar.
 
 ```js
 [ 'Hello, my name is Joe and I am 36 years old',
@@ -24,22 +24,12 @@ Debe quedar algo similar a esto, sin embargo las edades pueden variar.
   'Hello, my name is Steve and I am 19 years old' ]
 ```
 
-## 💡 Pista:
+## 💡 Pistas:
 
 + Debes determinar la edad de cada persona según su fecha de nacimiento (`birthDate`).
 
-+ Busca en Google "Cómo obtener la edad de la fecha de nacimiento dada en JavaScript".
-
-+ Recuerda la edad también depende del mes, si el mes de la fecha actual es mayor o igual al actual suma un año".
++ Busca en Google "Cómo obtener la edad con una fecha de nacimiento dada en JavaScript".
 
-+ Dentro de tu función simplifier, debe devolver una concatenación.
++ Recuerda la edad también depende del día, si el día de la fecha actual es mayor o igual al actual se suma un año.
 
-## Resultado esperado:
-
-```js
-[ 'Hello, my name is Joe and I am 13 years old',
-  'Hello, my name is Bob and I am 42 years old',
-  'Hello, my name is Erika and I am 28 years old',
-  'Hello, my name is Dylan and I am 18 years old',
-  'Hello, my name is Steve and I am 14 years old' ]
-```
++ Dentro de tu función `simplifier`, debes devolver una concatenación.

exercises/20.5-Map-arrays-of-objects/README.md

@@ -1,18 +1,18 @@
 # `20.5` Map array of objects
 
-The most common scenario for the mapping function is for simplifying given arrays, for example:
+The most common scenario for the mapping function is simplifying given arrays, for example:
 
 The current algorithm creates an array with only the names of the people and prints it on the console.
 
 ## 📝 Instructions:
 
-1. Please update the mapping function so it creates an array where each item contains the following:
+1. Please update the `simplifier` function so it creates an array where each item contains the following:
 
-```js
+```text
 Hello, my name is Joe and I am 36 years old
 ```
 
-## Expected result:
+## 💻 Expected result:
 
 The result should be similar to this, but the ages might be different.
 
@@ -24,12 +24,12 @@ The result should be similar to this, but the ages might be different.
   'Hello, my name is Steve and I am 19 years old' ]
 ```
 
-## 💡 Hint:
+## 💡 Hints:
 
-+ You have to get the age of each people based on their birthDate. 
++ You have to get the age of each person based on their `birthDate`. 
 
-+ Search in Google "How to get the age of given birth date in javascript".
++ Search in Google "How to get the age of a given birth date in JavaScript".
 
-+ Remember that the age also depends on the month, if the month of the current date is greater than or equal to the current month it adds up to one year".
++ Remember that the age also depends on the day, if the day of the current date is greater than or equal to the current day, it adds up one more year.
 
-+ Inside your simplifier function you have to return a concatenation.
++ Inside your `simplifier` function you have to return a concatenation.

exercises/20.5-Map-arrays-of-objects/app.js

@@ -6,8 +6,9 @@ let people = [
 	{ name: 'Steve', birthDate: new Date(2003,4,24) }
 ];
 
-let simplifier = function(person){
+let simplifier = function(person) {
+	// Your code here
 	return person.name;
 };
 
-console.log(people.map(simplifier));
+console.log(people.map(simplifier));

exercises/20.5-Map-arrays-of-objects/solution.hide.js

@@ -0,0 +1,22 @@
+let people = [
+	{ name: 'Joe', birthDate: new Date(1986,10,24) },
+	{ name: 'Bob', birthDate: new Date(1975,5,24) },
+	{ name: 'Erika', birthDate: new Date(1989,6,12) },
+	{ name: 'Dylan', birthDate: new Date(1999,12,14) },
+	{ name: 'Steve', birthDate: new Date(2003,4,24) }
+];
+
+let simplifier = function(person) {
+	// Your code here
+	let currentDate = new Date();
+	let age = currentDate.getFullYear() - person.birthDate.getFullYear();
+	let birthDateThisYear = new Date(currentDate.getFullYear(), person.birthDate.getMonth(), person.birthDate.getDate());
+
+	if (currentDate < birthDateThisYear) {
+	  age = age - 1;
+	}
+
+    return "Hello, my name is " + person.name + " and I am " + age + " years old";
+};
+
+console.log(people.map(simplifier));

exercises/20.5-Map-arrays-of-objects/test.js

@@ -20,7 +20,7 @@ test("You shouldn't delete the function named simplifier", function(){
 });
 
 
-test('The output in the console should should look similar but not exactly (years may vary) to the one in the instructions!', function () {
+test('The output in the console should look similar but not exactly (years may vary) to the one in the instructions', function () {
     const _app = rewire('./app.js');
     let _output = []
     let _people = [