Feature/blaze tool es6

[Grubba27]

#436 to the correct branch

[jankapunkt]

@Grubba27 do we still want to merge this into the 2.8 branch?

[jankapunkt]

I would prefer template literals instead of concatenated strings. First, they increase readability (which is debatable in this case) and it coerces the values alaways to Strings, while + coerces values to primitives, incl. side effects.

Edit: and let's decide for one quote style, either single or double. WHat does the Meter ESLINT prefer?

[jankapunkt]

let's use template literals:

`HTML.getTag(${toJSLiteral(name)})`

[jankapunkt]

let's use template literals:

return `[${parts.join(', ')}]`;

[jankapunkt]

let's use template lierals:

kvStrs.push(
  `${toObjectLiteralKey(k)}: ${this.visit(attrsDict[k])}`
);

[jankapunkt]

let's use template lierals:

return `{${kvStrs.join(', ')}}`;

[jankapunkt]

let's use template literals:

const scanner = new HTMLTools.Scanner(`z${input}`);

[jankapunkt]

let's use template literals:

const unicodeClass = function (abbrev) {
  return `[${unicodeCategories[abbrev].replace(/[0-9A-F]{4}/ig, "\\u$&")}]`
};

[jankapunkt]

for these I would agree to not use template literals 🤣

[jankapunkt]

This uses double-quotes, other strings use single quotes. Let's use the quotes as defined in the Meteor Eslint config?

[jankapunkt]

Please fix double vs single quotes issue