Define an array of numbers in JavaScript: $55\mathrm{.}6,10\mathrm{.}2,$ and $7\mathrm{.}3.$ You have to write two functions.

The first function will add $0\mathrm{.}5(+0\mathrm{.}5)$ to each number in the array, while the second will subtract

$0\mathrm{.}2(-1\mathrm{.}2)$ of each number in the array. Before doing any operation, you have to check if the

number is less than $0\mathrm{.}5.$ If it is$,$ do not subtract $1\mathrm{.}2.$

Suppose the span tag used to display the number in HTML code is like this:

Please note that you cannot use jQuery or any external library.

It is important to explain each line of code in detail.

You have to upload one file image or pdf file.