How to get browser screen size in JavaScript?

Use window. innerWidth and window. innerHeight to get the current screen size of a page.

How do you find the width of a web page?

Find the content area and click to focus on it. Back in the bottom window, click Box Model on the right. The width and height will be shown. The first number is the width.

How to redirect back in JavaScript?

There are two approaches used to redirect the browser window back. Approach 1: Using history. back() Method: The back() method of the window. history object is used to go back to the previous page in the current session history.

How do I find out my screen size?

The size of a desktop computer monitor is determined by physically measuring the screen. Using a measuring tape, start at the top-left corner and pull it diagonally to the bottom-right corner. Be sure to only measure the screen; do not include the bezel (the plastic edge) around the screen.

How do I tell the size of my Chrome window?

  1. Open Chrome Dev tools(F12)
  2. while you are resizing ,notice the top right corner and you will see a small chrome style notification showing the current window size which will disappear shortly.

What is innerHeight in Javascript?

The read-only innerHeight property of the Window interface returns the interior height of the window in pixels, including the height of the horizontal scroll bar, if present. The value of innerHeight is taken from the height of the window’s layout viewport.

What does isNaN function do in JavaScript?

isNaN() returns true if a number is Not-a-Number. In other words: isNaN() converts the value to a number before testing it.

How do I check my screen size in CSS?

You can use device-width which will test of the screen’s width in px. That however is not entirely recommended. Use max-width and min-width (for the viewport) instead. If you are trying to GET the screen width and use it (something like content: (device-width); of some sort, that’s not possible.