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

1. Open the Console.

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

   

   Figure 1 Typing document.activeElement into the Live Expression text box.

3. Type Control+Enter or Command+Enter (Mac) to save the expression, or click outside of the Live Expression text box.