Simple RegEx for slightly prettier JSON-ish output (unquoted keys, single-item objects/arrays on one line)

json-simplified.js

JSON.simplified = v => {
	return JSON.stringify(v, null, '\t')
		.replace(/(\n\t*)"([a-z][a-z0-9_]*)"/ig, '$1$2')
		.replace(/(\n[\sa-z0-9_:]+)\{\n\t*(.*)\n\t+\}/ig, '$1{$2}')
		.replace(/(\n[\sa-z0-9_:]+)\[\n\t*(.*)\n\t+\]/ig, '$1[$2]');
};
JSON.parseSimplified = t => {
	return JSON.parse(t
		.replace(/(\n[\sa-z0-9_:]+)([\[\{])([^\n])/ig, '$1$2\n$3')
		.replace(/(\n\t*)([a-z][a-z0-9_]*):/ig, '$1"$2":')
	);
};