Chrome, Edge, Opera
In Sources, right click the line number and select "Add a conditional breakpoint..."
Input the conditional expression on which the execution should pause, and press
Enter.
Firefox
In Debugger, right click the line number and select "Add condition"
Input the conditional expression on which the execution should pause, and press
Enter.
Safari
In Sources, click the line number to Add Breakpoint > Right click on the line number and select "Edit Breakpoint...".
Input the conditional expression on which the execution should pause, and press
Enter.
