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les API de la Console qui gagneraient à être plus connues, la numéro 3 va vous surprendre
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why console.log() returns undefined
It is also possible to use console.log with JSON.stringify (some Object, null... - DEV Community
What is the difference between null and undefined in JavaScript? - Learn to Code Tutorials Resources Tips Google Apps Script JavaScript Web Development
Why do browser consoles return undefined? Explained
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ICTFF Section Informatique
Stop Using console.log() In JavaScript | by Harsha Vardhan | JavaScript in Plain English