Array cardio day 2.

Worked through code challenge provided.

Author: rosmith76

07 - Array Cardio Day 2/index-START.html

@@ -26,15 +26,50 @@
 
     // Some and Every Checks
     // Array.prototype.some() // is at least one person 19 or older?
+    // const isAdult = people.some(function(person){
+    //   const currentYear = (new Date()).getFullYear();
+    //   if(currentYear - person.year >= 19) {
+    //     return true;
+    //   }
+    // });
+    // console.log({isAdult});    same as below
+
+    // const isAdult = people.some(person => {
+    //   const currentYear = (new Date()).getFullYear();
+    //   return currentYear - person.year >= 19;
+    // });
+    // console.log({isAdult}); same as below
+
+    const isAdult = people.some(person => ((new Date()).getFullYear()) - person.year >= 19);
+
+    console.log({isAdult});
+
     // Array.prototype.every() // is everyone 19 or older?
+    const allAdult = people.every(person => ((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 comment = comments.find(function(comment){
+    //   if(comment.id === 823423) {
+    //     return true;
+    //   }
+    // });  same as below one line of code
+    const comment = comments.find(comment => comment.id === 823423);
+    console.log(comment);
 
     // Array.prototype.findIndex()
     // Find the comment with this ID
     // delete the comment with the ID of 823423
+    const index = comments.findIndex(comment => comment.id === 823423);
+    console.log(index);
+    comments.splice(index, 1); //same as below
+    // const newComments = [
+    //   ...comment.slice(0, index),
+    //   ...comment.slice(index + 1) //... uses spread operator
+    // ]
 
   </script>
 </body>