feature/objects

staff/mary-quiroz/objects/add.js

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+/** 
+ * Adds an elment in a iterable object.
+ * 
+ * @param object - The iterable object to mutate.
+ * @param value - The value to add.
+ * 
+ * @throws {TypeError} when object is not an object.
+ */
+
+function add (object, value) {
+    object[object.lenth]= value
+    return object.length
+}
+
+console.log('CASE 1: add violet in colors')
+var colors = {
+    0: 'red',
+    1:'blue',
+    2: 'green',
+    length: 3
+}
+ var length = add(colors, 'violet')
+
+ console.log(length)
+ //4
+
+ console.log(colors)
+ /*
+ {
+    0:'red'
+    1:'blue'
+    2:'green'
+    3:'violet'
+    length: 4
+ }
+*/

staff/mary-quiroz/objects/extract.js

@@ -0,0 +1,51 @@
+/**
+ * Extracts an element that matches the condition from an iterable object
+ * 
+ * @param object - The iterable object to mutate.
+ * @param index -The index from which to extract a value.
+ * users[0]=users[0]
+ * users[1]=users[1]
+ * users[2]= callback
+ * users[3]=users[2]
+ * users[4]=users[3]
+ * 
+ * @throws {TyoeError} When object is not an object, or when index is not a number.
+ */
+function extract(object, callback) {
+
+
+}
+
+console.log('CASE 1: extract user pepito form users' )
+
+var users = {
+    0:{name: 'Wendy', age: 19},
+    1:{name: 'Peter', age:20},
+    2:{name: 'Pepito', age:50},
+    3:{name: 'Campa', age: 30},
+    4:{name: 'James', age:40},
+    length:5
+}
+
+
+
+var user =  extract(users, function (user){
+     if(user.name === 'Pepito'){
+      return user
+    }
+})
+
+
+
+console.log(user)
+//{name:'Pepito, age:50}
+
+console.log(users)
+/*
+{
+    0:{name:'wendy', age: 19},
+    1:{name:'Peter', age 20},
+    2:{name: 'Campa',age:30},
+    3:{name: 'James', age:40},
+    length: 4
+*/

staff/mary-quiroz/objects/extractMany.js

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+/** 
+ * Extract manys elements that matches the condition from an iterable object.
+ * 
+ * @param object - The iterable object to mutate.
+ * @param index - The index from which to extractMany a value.
+ * 
+ * @thows {TypeError} when objects is not an object, or when index is not a number.
+ */
+    //El extract es la funcion principal
+function extractMany(object, callback) {
+
+}
+/*
+    var extracted = {}
+    var contador = 0
+
+    for (let key in object) {
+        // Si entra aqui, la funcion termina
+        // verifica si es un objeto
+        if (typeof object !== 'object') {
+            throw new TypeError('Is not a object')
+        }
+
+        // { name: 'Pepito', age: 50 }
+        var element = object[key] //elemt es un objeto de usuario   
+        var result = callback(element)//es true o false
+
+        if (result) {
+            extracted[contador] = element
+            //{0:{ name: 'Pepito', age: 50 },
+            //1: { name: 'Campa', age: 30 },
+            //}
+            delete object[key]
+            contador++
+        }
+
+    }
+    return extracted
+
+
+}
+
+function fnUsers(user) {
+    //console.log(user)
+    return user.age > 25
+}
+
+extracted = extractMany(users, fnUsers)
+*/
+
+console.log('CASE 1: extracts many user forms users')
+var users = {
+    0:{name:'wendy', age:19},
+    1:{name:'peter', age:20},
+    2:{name: 'Pepito', age:50},
+    3:{name: 'Campa', age:30},
+    4:{name:'Jame', age: 40},
+    length: 5
+}
+
+var extracted = extractMany(users,function(user){
+    return user.age > 25
+})
+
+console.log(extracted)
+
+/*
+{
+    0:{name: 'Pepito', age:50},
+    1:{name: 'Campa', age:30},
+    2:{name: 'James', age:40,}
+    length:3
+}
+*/
+console.log(users)
+/*
+{
+0:{name:'Wendy', age:19},
+1:{name:'peter', age:20},
+length:2
+}
+*/

staff/mary-quiroz/objects/indexOf.js

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+function indexOf (object, value){
+    for(var i = 0; i< object.length; i++){
+        var elem = object[i]
+
+        if(elem === value)
+        return i
+    }
+    return -1
+}
+
+console.log('CASE 1: index of blue in colors')
+var colors={
+    0: 'red',
+    1:'blue',
+    2:'green',
+    length: 3
+
+}
+
+var index = indexOf(colors, 'blue')
+console.log(index)
+//1
+
+console.log(colors)
+/*
+{
+    0: 'red',
+    1: 'blue',
+    2: 'green',
+    length: 3
+
+}
+*/

staff/mary-quiroz/objects/insert.js

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+/**
+ * Inserts an element in iterable object at specfified index.
+ *
+ * @param object - The iterable object to mutate. 
+ * @param index - The index from which to insert the given values.
+ * @param value - The value to insert.
+ * 
+ * @throws {TypeError} When object is not an object, or when index is not a number.
+ */
+function insertMany(object, index, value) {
+    // TODO
+    if (!(object instanceof Object)) throw new TypeError(object + ' is not an Object')
+}
+
+console.log('CASE 1: insert skyblue in index 1')
+
+var colors = {
+    0: 'red',
+    1: 'blue',
+    2: 'green',
+    length: 3
+}
+
+var length = insertMany(colors, 1, 'skyblue')
+
+console.log(length)
+// 4
+
+console.log(colors)
+/*
+{
+    0: 'red',
+    1: 'skyblue',
+    2: 'blue',
+    3: 'green',
+    length: 4
+}
+*/
+
+console.log('CASE 2: insert skyblue, gold and plum in index 2')
+
+var colors = {
+    0: 'red',
+    1: 'blue',
+    2: 'green',
+    length: 3
+}
+
+var length = insertMany(colors, 2, 'skyblue', 'gold', 'plum')
+
+console.log(length)
+// 6
+
+console.log(colors)
+/*
+{
+    0: 'red',
+    1: 'blue',
+    2: 'skyblue',
+    3: 'gold',
+    4: 'plum',
+    5: 'green',
+    length: 6
+}
+*/
+
+console.log('CASE 3: fails on undefind object parameter')
+
+try {
+    insertMany()
+} catch (error) {
+    console.log(error)
+    // TypeError: undefined is not an Object
+}
+
+console.log('CASE 4: fails on 1 as an object parameter')
+
+try {
+    insertMany(1)
+} catch (error) {
+    console.log(error)
+    // TypeError: 1 is not an Object
+}
+
+console.log('CASE 5: fails on undefined as index parameter')
+
+var colors = {
+    0: 'red',
+    1: 'blue',
+    2: 'green',
+    length: 3
+}
+
+try {
+    insertMany(colors)
+} catch (error) {
+    console.log(error)
+    // TypeError: undefined is not a Number
+}