JavaScript Taskbook Level 5.6

Given an input, a button and a paragraph. A year is entered into the input. By clicking the button, determine whether a leap year has been entered or not and output information about this in the paragraph.

Given an input and a button. When the button is pressed, output a random number from the range 1 to 100 to the input.

Given an input, a button and a paragraph. A date is entered into the input in the format 2025-12-31. By pressing the button, output the day of the week corresponding to this date into the paragraph.

Given a div with width, height and border, and a button. Clicking on the button will double the size of the div.

Links are given. Make it so that when you hover over any link, the value of its attribute href appears above it.