From be82dd4fc43cc5b3b67f1058a4c914149d7b9f47 Mon Sep 17 00:00:00 2001
From: jacobclapper <clapperpianist@gmail.com>
Date: Tue, 14 Jun 2022 16:56:52 -0400
Subject: [PATCH] js-callbacks-iterators

---
 filter1.js  |  4 ++++
 filter2.js  |  5 ++++-
 foreach1.js |  5 +++++
 foreach2.js |  4 ++++
 map1.js     |  6 ++++++
 map2.js     | 14 ++++++++++++++
 reduce.js   | 24 +++++++++++++++++++++++-
 7 files changed, 60 insertions(+), 2 deletions(-)

diff --git a/filter1.js b/filter1.js
index 602ddc0..354162d 100644
--- a/filter1.js
+++ b/filter1.js
@@ -22,3 +22,7 @@ let people = [
 let isCool = person => person.coolnessScore > 20
 
 // Your code goes here
+const whoIsCool = people.filter(person => {
+    return person.coolnessScore > 20;
+})
+console.log(whoIsCool)
\ No newline at end of file
diff --git a/filter2.js b/filter2.js
index fd52f91..1f0b38b 100644
--- a/filter2.js
+++ b/filter2.js
@@ -2,5 +2,8 @@ let misc = [3, "true", {a: 1, b: 2}, 7, [1, 2, 3], ['a', 'b', 'c'], "my favorite
 
 // Use filter to filter all strings out of the above array. 
 // Don't worry about strings in the nested array (misc[5] is considered an array, not a string)
-
+const allStrings = misc.filter((str) => {
+    return str.substring
+})
 // Your code goes here
+console.log(allStrings)
\ No newline at end of file
diff --git a/foreach1.js b/foreach1.js
index 7158aaa..990ac6f 100644
--- a/foreach1.js
+++ b/foreach1.js
@@ -9,3 +9,8 @@
 let foods = ["pizza", "tacos", "ice cream", "sushi"];
 
 // your code here
+
+const iLikeFoods = foods.filter((food) => {
+    return console.log("I like " + food)
+})
+console.log(iLikeFoods)
\ No newline at end of file
diff --git a/foreach2.js b/foreach2.js
index 7c29104..2f849f1 100644
--- a/foreach2.js
+++ b/foreach2.js
@@ -11,4 +11,8 @@ let foods = [
 ];
 
 // your code here
+const goodFoods = foods.forEach((food) => {
+  return console.log(`${food.name} is ${food.level} delicious`)
+})
+console.log(goodFoods)
 
diff --git a/map1.js b/map1.js
index 9ec71f4..19fd4b7 100644
--- a/map1.js
+++ b/map1.js
@@ -40,3 +40,9 @@ let forecast = [
 // "Monday will have a high of 55F and a low of 53F."
 
 //Your code here
+
+
+const forecastMessage = forecast.map(days => {
+    return `${days.day} will have a high of ${days.high} and a low of ${days.low}."`
+})
+console.log(forecastMessage)
\ No newline at end of file
diff --git a/map2.js b/map2.js
index aa8ae04..0e6deb0 100644
--- a/map2.js
+++ b/map2.js
@@ -6,3 +6,17 @@ let numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9]
 // e.g. "36 is larger than 30"
 
 //Your code here
+
+const squareEachNumber = numbers.map(num => {
+    return Math.pow(num, 2)
+})
+
+console.log(squareEachNumber)
+
+
+
+const largerThan30 =  squareEachNumber.filter(overThirty => {
+    return overThirty > 30
+})
+
+console.log(largerThan30)
\ No newline at end of file
diff --git a/reduce.js b/reduce.js
index 50a1791..a8b30ce 100644
--- a/reduce.js
+++ b/reduce.js
@@ -34,8 +34,15 @@ const cities = [
 
 // Use reduce to get the sum of the population of all 5 cities
 
+const addPopulation = cities.reduce((world, city) => {
+    return city.population + world ;
+}, 0)
+console.log(addPopulation)
 // Use reduce to get the city with the highest population (output should be an object)
-
+// const highestPopulation = cities.reduce((world, city) => {
+//       return city.population + world ;
+//   }, 0)
+//   console.log(addPopulation)
 // Even hungrier:
 
 const developers = [
@@ -86,6 +93,21 @@ const developers = [
 
 // This one is HARD
 
+// reduce has optional second argument
+// this will stand for the initial value
+// const ageSum = instructors.reduce((sum, instructor) => {
+//     return sum + instructor.age ;
+// }, 0)
+
+// console.log(ageSum)
+
+// const makeSum = (num1, num2) => {
+//       return num1 + num2.age
+//   }
+//   const ageSum = instructors.reduce(makeSum, 0)
+//   console.log(ageSum)
+    
+
 // Hint 1: the desired output is an object, you might want to use that as your initial value