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Start your free trialNatalie Cluer
18,898 Pointsclass vs className
In the video, Guil changes the instances of class
to className
in the jsx so that his app looks the way he styled it in the browser. But on my computer I hadn't changed class
to className
and my app looked the way it should. Any possible reason for this? When I changed class
to className
it actually broke the layout
2 Answers
Seth Kroger
56,414 Pointsclass
is a reserved word in JavaScript, i.e., it's a word that forms a statement such as if
, let
, or for
. Since JSX lets you use JavaScript expressions inside using class
for an HTML class would cause it to be misinterpreted as the start of a class statement. JSX instead uses className
to avoid that and if the file is properly run though the Babel's JSX compiler (which webpack should do for you automatically) there shouldn't be an issue.
Thomas Gauperaa
3,584 PointsCan you post your code here?
Oziel Perez
61,321 PointsOziel Perez
61,321 PointsNote: class was added as a keyword in ES6, but many browsers haven't implemented this yet, hence why react is usually configured to be transpiled by babel through webpack