Javascript

Question 1

var body = document.body

Answer 1

this selects the whole body and we can use

bodyt.append(‘Hello World’) in order to have hello word show up on the page

Question 2

appendChild()

Answer 2

you can only append nodes and not text

Question 3

setAttribute()

Answer 3

you can use the setAttribute to set classes and id

first parameter is what you want to set and the second is value you want to set

Question 4

chunk Array in groups

Answer 4

function chunkArrayInGroups(arr, size) {
  let newArr = [];
  let i = 0;
while (i < arr.length){
  newArr.push(arr.slice(i,i + size))
  i+= size
}
return newArr

}

chunkArrayInGroups([“a”, “b”, “c”, “d”], 2);

Question 5

what does parseInt do

parseInt syntax: parseInt(string, radix)

Answer 5

The parseInt function converts its first argument to a string, parses that string, then returns an integer or NaN . If not NaN , the return value will be the integer that is the first argument taken as a number in the specified radix

Question 6

what does the String.fromCharCode() method do

Answer 6

The String. fromCharCode() method converts Unicode values to characters