Debugging with Console & DevTools

How can you filter the console to show only error messages?

console.log('User logged in:', user);
console.log('Session started:', session);
console.error('Failed to load preferences');
console.warn('Using default settings');
console.debug('DOM fully rendered');

Type 'errors' in the console
Use the dropdown filter and select 'Errors'
Console filtering is accomplished through the UI: 1) Browser DevTools provide a dropdown filter menu in the console panel, 2) Selecting 'Errors' filters the display to show only console.error() messages, 3) This helps focus on critical issues when debugging a problem, 4) Other filter options typically include Warnings, Info, Verbose, and user-defined levels, 5) Filtering doesn't prevent messages from being logged; it only affects what's displayed, 6) Some browsers also offer text filtering to show only messages containing specific text, 7) Filters can be combined with console groups for even more organized debugging, 8) This filtering capability is essential when dealing with verbose applications that generate many console messages.
Run console.filter('errors')
Set console.level = 'error'

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