What is a vuejs loader?

Vue loader is a loader for webpack that allows you to author Vue components in a format called Single-File Components (SFCs).

For example, it authors HelloWorld component in a SFC,

<template>
</template>

<script>
export default {
data () {
return {
message: 'Hello world for vueloader!'
}
}
}
</script>

<style>
.greeting {
color: blue;
}
</style>