This Undefined

Posted on  by admin
You're happily coding along, loving how awesome Vue is, when it strikes.

Your VueJS app doesn't work, and you get an error that says:. Don't worry, you're not alone — I've run into this issue countless times, and I'll show you just how to solve it.

The likely cause of this is that you're mixing up your usage of regular functions and arrow functions. My guess is that you're using an arrow function. If you replace the arrow function with a regular function it will probably fix the issue for you. But let's go a little further and try to understand why this works.

console.log('REFS', this.refs.russian);

After all, knowledge is power, and if you know what caused your problem, you'll be able to avoid a lot of frustration and wasted time in the future.

Zach
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