Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trial
Ovidiu Cotorogea
12,998 PointsWhy does the function statement of vanilla js doesn't work?
I know it may be a bit stupid, but why doesn't it works like this
.then(function(response) {
this.setState({
gifs: response.data.data,
loading: false
})
})
But works like this?
.then(response => {
this.setState({
gifs: response.data.data,
loading: false
})
})
The difference lays in the function syntax
Ovidiu Cotorogea
12,998 PointsWoops, my bad! It's updated now
1 Answer
Brendan Whiting
Front End Web Development Techdegree Graduate 84,735 PointsI think the issue with the this in the function. Arrow function inherits this from it's scope, it doesn't have it's own this. So this.setState is going to break if you use the traditional function. This section of the MDN docs explains this concept in more detail.
Brendan Whiting
Front End Web Development Techdegree Graduate 84,735 PointsBrendan Whiting
Front End Web Development Techdegree Graduate 84,735 PointsThese two code snippets are identical. Can you post the other version?