How to use setTimeout in a Vue.js method?

Add a bind() call to your function declaration:

setTimeout(function () { this.fetchHole() }.bind(this), 1000)

so that your Vue component’s this is accessible within the function.

^{Side note: @nospor’s accepted answer is cleaner in this particular situation. The bind approach is a bit more generalized – very useful if you want to do an anonymous function, for example.}