From 7d55793d38efdb8a561690fd5f01e460e7055e12 Mon Sep 17 00:00:00 2001
From: changicho <changicho29@gmail.com>
Date: Fri, 5 Jun 2020 14:32:55 +0900
Subject: [PATCH] Feat: Add 07 - Array Cardio Day 2
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?: some, every, find, findIndex 메소드 이용
Array.prototype 에 존재하는 메소드 동작 실습
---
 07 - Array Cardio Day 2/changi.html | 66 +++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 07 - Array Cardio Day 2/changi.html
diff --git a/07 - Array Cardio Day 2/changi.html b/07 - Array Cardio Day 2/changi.html
new file mode 100644
index 0000000..3b73381
--- /dev/null
+++ b/07 - Array Cardio Day 2/changi.html	
@@ -0,0 +1,66 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <title>Array Cardio 💪💪</title>
+  </head>
+  <body>
+    <p><em>Psst: have a look at the JavaScript Console</em> 💁</p>
+    <script>
+      // ## Array Cardio Day 2
+
+      const people = [
+        { name: "Wes", year: 1988 },
+        { name: "Kait", year: 1986 },
+        { name: "Irv", year: 1970 },
+        { name: "Lux", year: 2015 },
+      ];
+
+      const comments = [
+        { text: "Love this!", id: 523423 },
+        { text: "Super good", id: 823423 },
+        { text: "You are the best", id: 2039842 },
+        { text: "Ramen is my fav food ever", id: 123523 },
+        { text: "Nice Nice Nice!", id: 542328 },
+      ];
+
+      // Some and Every Checks
+      // Array.prototype.some() // is at least one person 19 or older?
+      const isAdult = people.some((person) => {
+        return new Date().getFullYear() - person.year >= 19;
+      });
+
+      console.log({ isAdult });
+
+      // Array.prototype.every() // is everyone 19 or older?
+      const allAdult = people.every((person) => {
+        return new Date().getFullYear() - person.year >= 19;
+      });
+
+      console.log({ allAdult });
+
+      // Array.prototype.find()
+      // Find is like filter, but instead returns just the one you are looking for
+      // find the comment with the ID of 823423
+      const result = comments.find((comment) => {
+        return comment.id === 823423;
+      });
+      console.log({ result });
+
+      // Array.prototype.findIndex()
+      // Find the comment with this ID
+      // delete the comment with the ID of 823423
+      const resultIndex = comments.findIndex((comment) => {
+        return comment.id === 823423;
+      });
+      console.log({ resultIndex });
+
+      const newComments = [
+        ...comments.slice(0, resultIndex),
+        ...comments.slice(resultIndex + 1),
+      ];
+
+      console.table(newComments);
+    </script>
+  </body>
+</html>
