String types which contain a number prefixed by zero are incorrectly detected

[mryellow]

I'm looking at an old version but seems current code has the same issue.

parseFloat('01111') === 1111

"01111" is not a number, but is instead a string.

node-csvtojson/src/lineToJson.ts

Lines 162 to 168 in 89a9a36

	function numberType(item) {
	var rtn = parseFloat(item);
	if (isNaN(rtn)) {
	return item;
	}
	return rtn;
	}

Unfortunately isFinite('01111') === true also otherwise it may be a solution.

You may need a Regex based approach.