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Gerald Bishop
Python Development Techdegree Student 5,289 PointsShould arrow functions work with the "this" keyword in jQuery?
The code on lines 25 to 27 of app.js do not seem to work with the this keyword:
I can only get it to work if I change the ()=> arrow function to a function declaration, i.e., using the function keyword or by changing the this keyword to event.target and inserting event as a parameter.
Can I change my code to get the arrow function to work with the this keyword?
Thanks
Gerald Bishop
Python Development Techdegree Student 5,289 Pointsjosephweiss2 sorry I accidentally deleted the snapshot. Here is the code that doesn't work:
$('ul').on('dblclick', 'li', ()=> {
$(this).toggleClass("strike");
});
As Steven says, the ()=> needs to be changed to function() for it to work with the this keyword.
Steven Parker
224,807 PointsThis is a better solution than converting the function so you can use "this":
$('ul').on('dblclick', 'li', e => {
$(e.target).toggleClass("strike");
});
1 Answer
Steven Parker
224,807 PointsThis is not related to jQuery. Arrow functions just don't bind "this" like conventional functions do. For more details, see this MDN page on Arrow function expressions.
But for event handlers, passing the event object to a parameter is the "best practice" approach anyway.
josephweiss2
6,932 Pointsjosephweiss2
6,932 Pointsthe link doesn't work, can you Passover your code? that will make it better to see what's the problem. Thanks