JS Codes

Question 1

.toUpperCase( )

Answer 1

Returns the calling string value converted to uppercase

Question 2

Math.min( )

Answer 2

Returns the lowest-valued number passed into it

Question 3

.push( )

Answer 3

Adds one or more elements to the end of an array and returns the new length of the array

Question 4

Math.floor( )

Answer 4

Returns the largest integer less than or equal to a given number

Question 5

.map( )

Answer 5

Creates a new array populated with the results of calling a provided function on every element in the calling array

const arr = [1, 4, 9, 16];
const map1 = arr.map(x => x * 2);
console.log(map1)
>>>>[2, 8, 18, 32]

Question 6

.reduce( )

Answer 6

Returns the sum of all the elements in an array

const arr = [1, 2, 3, 4];
const sum = arr.reduce((a, b) => a + b, 0);
console.log(sum);
»» 10

a=new total
b=array value