HTTP stands for Hypertext Transfer Protocol. It is rules for data communication in WWW(Web Wide Web).
In order to make a http request, we need to at least specify:
Decimal number simple means a number that base on the number 10.
Example: 123 = 100+20+3 = 1*10²+ 1*10¹ + 3*10⁰ = 123
A number that made by 1s and 0s.
Example: 101 = 1*2² + 0*2¹ + 1*2⁰ = 5
Divide the decimal number by 2, update the decimal number to quotient until 0 and keep tracking the reminder. The reversed reminder will be the answer.
Example: Given 5 convert to a binary number, the answer is 101.
To convert a binary number to decimal, simply sum the binary digits together.
Example: Given 100 convert to decimal number, the answer is 4.
{} declare an array.
[] declare an object.
An array is an object so it has all the same capabilities of an object plus a bunch of additional features for managing an ordered, sequential list of numbered indexes starting from 0 and going up to some length.
Array are typically used for:
An ordered list of items that are accessed by numerical index. (lots of features to manage the order of the list or to add or remove things from the list)
Plain JavaScript use .js
Anything is not plain JavaScript use .jsx
.ts for TypeScript
