Is there a way to call the following function using ES6 syntax:
let type = 'Line'
new Chartkick.${ type }Chart(el, this.data)
with the hopes of generating:
new Chartkick.LineChart(el, this.data)
No, you don't need any string interpolation for this. It's just standard dynamic property access with bracket notation:
new Chartkick[type+"Chart"](el, this.data);
Of course you could use an ES6 template literal instead of the string concatenation, but I don't think it boosts readability a lot:
new Chartkick[`${ type }Chart`](el, this.data);