Check Semantic Versioning 1st attempt

semver_attempt_1.js

const correctSemverRange = (ver, range) => {
	const shouldMatch = {
		'^': [['=', '>', ''], ['=', '=', '>=']],
		'~': [['=', '=', '>=']],
		'default': [['=', '=', '=']]
	};
	const rangeSymbol = range.substring(0, 1);
	const verNumArr = ver.split('.');
	let rangeNumArr = range.split('.');
	let result = false;

	switch (rangeSymbol) {
		case '^':
		case '~':
			rangeNumArr[0] = rangeNumArr[0].substring(1);
			break;
		default:
			rangeSymbol = 'default';
	}

	for (let j = 0, caseNums = shouldMatch[rangeSymbol].length; j < caseNums; j++) {
		let cond = shouldMatch[rangeSymbol][j];
		for (let i = 0, arrLength = verNumArr.length; i < arrLength; i++) {
			if (cond[i] === '=') {
				result = (parseInt(verNumArr[i]) === parseInt(rangeNumArr[i]));
			} else if (cond[i] === '>') {
				result = (parseInt(verNumArr[i]) > parseInt(rangeNumArr[i]));
			} else if (cond[i] === '>=') {
				result = (parseInt(verNumArr[i]) >= parseInt(rangeNumArr[i]));
			} else if (cond[i] === '') {
				result = true;
			}

			if (!result) {
				break;
			}
		}

		if (result) {
			break;
		}
	}

	return result;
}

correctSemverRange("1.12.4", "~1.12.0");