The console object in JavaScript is fundamental piece when we are development ours projects. ‼️ You can go to my to find JavaScript examples. ‼️ Github If we type in our Google Chrome Developer Tools, in the tag, the word: console console you can see that is an object that is inside de global window object: So you can access the console object from the window object. window.console 👓 But is not necessary Let’s get to know her even more: Print in the console: 🔈 _// Printing text_console.log('Hi!'); _// Printing a variable_const PI = Math.PI;console.log(PI); // Expresionsconsole.log(2 + 4);console.log(`PI value: ${PI}`); // Comparingconsole.log(null === undefined);console.log(3 > 2);console.log(typeof NaN);console.log(true || false);console.log(true && false); // Ternary Operatorconsole.log( (3 > 2) ? 'Three!' : 'Two!'); 📍 Result: Print an error: ❌ console.error('Error!'); 📍 Result: Print a warning message: ⚠️ console.warn('Be careful') Examining a object: 🔦 console.dir(document);console.dir({a: 5}); 📍 Result: Assertion: ⛳ function isEqual(x, y) {console.assert(x === y, { "message": "x is not equal than y","x":   x,"y": y });}isEqual(10, 5); Clear: ⬜️ console.clear(); will be the console empty. 📍 Result: Table Output: 📋 const users = [{name: 'Nick', age: 33},{name: 'Jessica', age: 23}];console.table(users); 📍 Result: 〽️ Time: const users = [10, 20, 30];console.time('performance');const gThan10 = users.filter(n => n > 10);console.log(gThan10);console.timeEnd('performance'); 📍 Result: Group: 📦 console.group('numbers');console.log(1);console.log(2);console.log(3);console.groupEnd('numbers'); Thank you 😊!

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Discovering the Console in JavaScript

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Germán Cutraro

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Discovering the Console in JavaScript

Too Long; Didn't Read

Companies Mentioned

Germán Cutraro

About Author

TOPICS

THIS ARTICLE WAS FEATURED IN...

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