danieluhl · January 6, 2017 02:47 · Jan 6, 2017
diff --git a/JS30-07.js b/JS30-07.js
@@ -0,0 +1,39 @@
+// ## 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?
+// Array.prototype.every() // is everyone 19?
+const isAdult = person => (new Date()).getFullYear() - person.year > 18;
+const some = people.some(isAdult);
+console.log({some});
+const every = people.every(isAdult);
+console.log({every});
+
+// 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 isTheComment = comment => comment.id === 823423;
+const theComment = comments.find(isTheComment);
+console.log({theComment});
+
+// Array.prototype.findIndex()
+// Find the comment with this ID
+// delete the comment with the ID of 823423
+const theCommentIndex = comments.findIndex(isTheComment);
+comments.splice(theCommentIndex, 1);
+console.log(comments);