# Array Metonds practice

let names = [
  "Steven Paul Jobs",
  "Bill Gates",
  "Mark Elliot Zuckerberg",
  "Elon Musk",
  "Jeff Bezos",
  "Warren Edward Buffett",
  "Larry Page",
  "Larry Ellison",
  "Tim Cook",
  "Lloyd Blankfein",
];

## Q1.
### map
* Convert all names to uppercase and print them.
* you can use .uppercase method to uppercase the name.

## Q2.

### filter
* Print the names of people that include the letter "a"

## Q3.

### find
* Find the person whose full name length is 20 characters or more.

## Q4.
### ?
* Find the index of the person whose full name is 20 characters or more.

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answer code

https://hackmd.io/@7ou6tNnWQymscuTqec1zFQ/B1lMs6Vdree

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# ES6 Object practice

const student = {
  id: 101,
  name: "Minho",
  grade: "A",
  school: "K-High"
};

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## Q1.
* Add a greet() method inside the object using method shorthand syntax.
* Use destructuring to extract name and print a greeting.

=> To use destructuring inside a method, apply it to this, not to the object variable name
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## Q2.
* Make a copy of the student object and update the grade to "B" using the spread operator.

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answer code

https://hackmd.io/@7ou6tNnWQymscuTqec1zFQ/B1lMs6Vdree