JavaScript Optional Chaining in 5 Minutes (No more "cannot read property of undefined"!) - YouTube
![Yoelvis Mulen on Twitter: "💡JS tip: Sabías que puedes usar optional chaining ?. para acceder de forma segura a propiedades, métodos e índices de arreglos: Sintaxis: obj.val?.prop obj.val?.[expr] obj.arr?.[index] obj.func?.(args) #javascript #tips](https://pbs.twimg.com/media/FNAqOybXsAUX7NP.jpg "Yoelvis Mulen on Twitter: \"💡JS tip: Sabías que puedes usar optional chaining ?. para acceder de forma segura a propiedades, métodos e índices de arreglos: Sintaxis: obj.val?.prop obj.val?.[expr] obj.arr?.[index] obj.func?.(args) #javascript #tips")
Yoelvis Mulen on Twitter: "💡JS tip: Sabías que puedes usar optional chaining ?. para acceder de forma segura a propiedades, métodos e índices de arreglos: Sintaxis: obj.val?.prop obj.val?.[expr] obj.arr?.[index] obj.func?.(args) #javascript #tips
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David East on Twitter: "⚡️ Optional chaining is landing in Chrome 80! I don't care what they say, JavaScript is beautiful. https://t.co/DnmDgcYSq6" / Twitter
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George Moller on Twitter: "💡JavaScript Tip: use optional chaining to deeply check keys in javascript objects. https://t.co/x9aw8OmU67" / Twitter
