JavaScript console
looking at JavaScript variables without displaying them
For debugging purposes, we can output any processed data without directly affecting the program using console logging or console.log
:
We can access the console
by
loading the page that contains the script on the browser
right-clicking on the page
clicking on "Inspect" (or similar)
finding the "Console" tab:
Thus, we can see what happens to our code without directly displaying it on the browser!
Another example
In app.js
once again, we could use console.log
as a calculator:
...checking a variable made of other variables:
Wwe can see how console.log
enables us to see outputs of sensitive calculations without showing them directly on the webpage!
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