Kayce Basques

Sofia Emelianova

If you find yourself typing the same JavaScript expression in the Console repeatedly, you might findit easier to create aLive Expression. WithLive Expressions, you type an expression once andthen pin it to the top of your Console. The value of the expression updates in near real time.

Create a live expression

To pin an expression to the top of theConsole:

1. Open the Console.

2. ClickCreate Live Expression. TheLive Expression text box appears.

3. Type your expression in the text box. For example, you can use a live expression totrack element focus.

   

   Key point: To type a multi-line expression, start the new line by pressing <kbd>Shift</kbd>+<kbd>Enter</kbd>.

4. PressEnter to save the expression, or click outside of theLive Expression text box.

The value below the pinned expression is its result. The result updates every 250 milliseconds.

Add multiple expressions

To pin multiple expressions in parallel, click theCreate Live Expression button as many times as you need.

You can only see several pinned expressions at a time but you can scroll the expressions list to view all of them.