conditional-logging-in-the-console.mdx

category	created	tags	title
Tip	2021-02-24	DevTools	Conditional logging in the Console

Use console.assert() to print out something in the Console when a given condition doesn't match.

if (condition) {
    // Do something
} else {
    console.log('Error message');
}

// Better
console.assert(!condition, 'Error message');

See also

• Count how many times a function has been called
• Log a value to the Console
• Log a variable in an arrow function
• Log a variable to the console using conditional breakpoints
• Log an array to the Console