Watch JavaScript values in real-time with Live Expressions

If you find yourself typing the same JavaScript expression in the Console repeatedly, you might find it easier to create a Live Expression. With Live Expressions, you type an expression once and then 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 the Console:

1. Open the Console.

2. Click Create Live Expression. The Live Expression text box appears.

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

   
   Important

   To type a multi-line expression, start the new line by pressing Shift+Enter.

4. Press Enter to save the expression, or click outside of the Live 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 the Create 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.

# Remove expressions

To remove an expression, click the Close button next to it.