I have just developed a new component in VueJS and defined two methods. One method is an action (vuex) and the other one is a regular method.
actionTypes.js
const TOGGLE_PREVIEW = 'togglePreview';
component
method: {
...mapActions([actionTypes.TOGGLE_PREVIEW]),
onClickPreview: () => {
this.togglePreview();
}
An issue has occurred, displaying
Uncaught TypeError: Cannot read property 'togglePreview' of undefinedVue makes it easy to access data, methods, props, and injections by proxying them on the instance when a Vue instance is created. To proxy methods, Vue uses the Function.prototype.bind method.
The
bind()method creates a new function that, when called, has itsthiskeyword set to the provided value.
However, this approach does not work with arrow functions because their scope cannot be bound; they inherit their parent's scope instead. In such cases, using a normal function will ensure that the correct this scope is bound to the Vue instance.
methods: {
...mapActions([actionTypes.TOGGLE_PREVIEW]),
onClickPreview() {
this.togglePreview();
}
}
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