You can also declare an expression that modifies a variable value in the code, and this will be re-evaluated whenever you step through the code or refresh the watch expression.Я импортировал в IntelliJ IDEA архитип мавена, с готовым тестовым фрэймворком. For example, mywatchvar1 = 3 and mywatchvar2 = mywatchvar1 + 2 will evaluate mywatchvar2 as 5. You can enter any valid expression into the watch, and even declare new “watch” variables and re-use them. The expression will be evaluated when you save, when you step through the code, or when you select the Refresh icon (next to +). Then type the expression into the text entry field that appears at the bottom of the panel, and press Enter to save it.
To add a watch expression click the + button in the top right corner of the panel.
Expressions that evaluate to an object can be expanded using the caret symbol to the left. Each line shows the expression and its value at the current step,separated by a colon. The screenshot below shows the Watch expressions panel with a number of expressions already defined. Watching more complicated expressions can sometimes also be useful:for example, to check that variables are within certain limits or values. As you step through code, the debugger will watch the expression and return any results.Watches are most commonly used to group individual*variables* of interest for easier observation. The Debugger Watch expressions pane allows you to specify JavaScript expressions that will be reevaluated and displayed every time the debugger pauses. Getting Set Up To Work On The Firefox Codebase.
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