add find test and implementation b00tc4mp#160

staff/manuel-barzi/playground/arrays/Array.prototype.find.js

@@ -0,0 +1,51 @@
+console.log('TEST Array.prototype.find')
+
+console.log('CASE find first greater than 10')
+
+var nums = [5, 12, 8, 130, 44]
+var found = nums.find(function (num) { return num > 10 });
+console.log(found);
+// 12
+
+console.log('CASE find first greater than 100')
+
+var nums = [5, 12, 8, 130, 44]
+var found = nums.find(function (num) { return num > 100 });
+console.log(found);
+// 130
+
+console.log('CASE find first name with length lower than 3')
+
+var names = ['Peter', 'Leo', 'Wendy', 'Io', 'Mark']
+var found = names.find(function (name) { return name.length < 3 })
+console.log(found)
+// Io
+
+console.log('CASE find product in cart with more than 5 items')
+
+var cart = [
+    { brand: 'Nike', model: 'Air Max', quantity: 2 },
+    { brand: 'Puma', model: 'Gatopardo', quantity: 1 },
+    { brand: 'Adidas', model: 'Black', quantity: 7 },
+    { brand: 'Santacruz', model: 'Longboard 123', quantity: 4 }
+]
+var product = cart.find(function (product) {
+    //return product['quantity'] > 5
+    return product.quantity > 5
+})
+console.log(product)
+// { brand: 'Adidas', model: 'Black', quantity: 7 }
+
+console.log('CASE find product in cart with brand containing z')
+
+var cart = [
+    { brand: 'Nike', model: 'Air Max', quantity: 2 },
+    { brand: 'Puma', model: 'Gatopardo', quantity: 1 },
+    { brand: 'Adidas', model: 'Black', quantity: 7 },
+    { brand: 'Santacruz', model: 'Longboard 123', quantity: 4 }
+]
+var product = cart.find(function (product) {
+    return product.brand.includes('z')
+})
+console.log(product)
+// { brand: 'Santacruz', model: 'Longboard 123', quantity: 4 }

staff/manuel-barzi/playground/iterables/find.js

@@ -0,0 +1,65 @@
+var find = function (iterable, callback) {
+    for (var i = 0; i < iterable.length; i++) {
+        var element = iterable[i]
+
+        var found = callback(element)
+
+        if (found) return element
+    }
+
+    //return undefined
+}
+
+console.log('TEST find')
+
+console.log('CASE find first greater than 10')
+
+var nums = { '0': 5, '1': 12, '2': 8, '3': 130, '4': 44, 'length': 5 }
+var found = find(nums, function (num) { return num > 10 });
+console.log(found);
+// 12
+
+console.log('CASE find first greater than 100')
+
+var nums = { '0': 5, '1': 12, '2': 8, '3': 130, '4': 44, 'length': 5 }
+var found = find(nums, function (num) { return num > 100 });
+console.log(found);
+// 130
+
+console.log('CASE find first name with length lower than 3')
+
+var names = { 0: 'Peter', 1: 'Leo', 2: 'Wendy', 3: 'Io', 4: 'Mark', length: 5 }
+var found = find(names, function (name) { return name.length < 3 })
+console.log(found)
+// Io
+
+console.log('CASE find product in cart with more than 5 items')
+
+var cart = {
+    0: { brand: 'Nike', model: 'Air Max', quantity: 2 },
+    1: { brand: 'Puma', model: 'Gatopardo', quantity: 1 },
+    2: { brand: 'Adidas', model: 'Black', quantity: 7 },
+    3: { brand: 'Santacruz', model: 'Longboard 123', quantity: 4 },
+    length: 4
+}
+var product = find(cart, function (product) {
+    //return product['quantity'] > 5
+    return product.quantity > 5
+})
+console.log(product)
+// { brand: 'Adidas', model: 'Black', quantity: 7 }
+
+console.log('CASE find product in cart with brand containing z')
+
+var cart = {
+    0: { brand: 'Nike', model: 'Air Max', quantity: 2 },
+    1: { brand: 'Puma', model: 'Gatopardo', quantity: 1 },
+    2: { brand: 'Adidas', model: 'Black', quantity: 7 },
+    3: { brand: 'Santacruz', model: 'Longboard 123', quantity: 4 },
+    length: 4
+}
+var product = find(cart, function (product) {
+    return product.brand.includes('z')
+})
+console.log(product)
+// { brand: 'Santacruz', model: 'Longboard 123', quantity: 4 }

staff/manuel-barzi/playground/raids/Raid.prototype.find.js

@@ -0,0 +1,83 @@
+var Raid = function () { this.length = 0 }
+
+Raid.prototype.find = function (callback) {
+    for (var i = 0; i < this.length; i++) {
+        var element = this[i]
+
+        var found = callback(element)
+
+        if (found) return element
+    }
+
+    //return undefined
+}
+
+console.log('TEST Raid.prototype.find')
+
+console.log('CASE find first greater than 10')
+
+var nums = new Raid
+nums['0'] = 5
+nums['1'] = 12
+nums['2'] = 8
+nums['3'] = 130
+nums['4'] = 44
+nums.length = 5
+var found = nums.find(function (num) { return num > 10 });
+console.log(found);
+// 12
+
+console.log('CASE find first greater than 100')
+
+var nums = new Raid
+nums['0'] = 5
+nums['1'] = 12
+nums['2'] = 8
+nums['3'] = 130
+nums['4'] = 44
+nums.length = 5
+var found = nums.find(function (num) { return num > 100 });
+console.log(found);
+// 130
+
+console.log('CASE find first name with length lower than 3')
+
+var names = new Raid
+names['0'] = 'Peter'
+names['1'] = 'Leo'
+names['2'] = 'Wendy'
+names['3'] = 'Io'
+names['4'] = 'Mark'
+names.length = 5
+var found = names.find(function (name) { return name.length < 3 })
+console.log(found)
+// Io
+
+console.log('CASE find product in cart with more than 5 items')
+
+var cart = new Raid
+cart[0] = { brand: 'Nike', model: 'Air Max', quantity: 2 }
+cart[1] = { brand: 'Puma', model: 'Gatopardo', quantity: 1 }
+cart[2] = { brand: 'Adidas', model: 'Black', quantity: 7 }
+cart[3] = { brand: 'Santacruz', model: 'Longboard 123', quantity: 4 }
+cart.length = 4
+var product = cart.find(function (product) {
+    //return product['quantity'] > 5
+    return product.quantity > 5
+})
+console.log(product)
+// { brand: 'Adidas', model: 'Black', quantity: 7 }
+
+console.log('CASE find product in cart with brand containing z')
+
+var cart = new Raid
+cart[0] = { brand: 'Nike', model: 'Air Max', quantity: 2 }
+cart[1] = { brand: 'Puma', model: 'Gatopardo', quantity: 1 }
+cart[2] = { brand: 'Adidas', model: 'Black', quantity: 7 }
+cart[3] = { brand: 'Santacruz', model: 'Longboard 123', quantity: 4 }
+cart.length = 4
+var product = cart.find(function (product) {
+    return product.brand.includes('z')
+})
+console.log(product)
+// { brand: 'Santacruz', model: 'Longboard 123', quantity: 4 }