factorio-clusterio/lib/objectOps.js

/**
Helper functions related to objects
@module
*/

/**
Deep clones an object, is actually just JSON.parse(JSON.stringify()) but looks cleaner.
@param {object} obj to clone
@returns {object}

@example
a = {"thingy":"with a value"};
b = a;
a == b; // true
c = objectOps.deepclone(a);
a == c; // false
*/
module.exports.deepclone = function(obj){
	return JSON.parse(JSON.stringify(obj));
}
/**
Checks if a string is valid JSON using try/catch. If passed an object it will always return true.
@param {string} string to verify
@returns {boolean}

@example
objectOps.isJSON("99 bottles of beer"); // false
objectOps.isJSON("99"); // true
objectOps.isJSON({"thingy":"that is an object"}); // true
objectOps.isJSON(JSON.stringify({"thingy":"that is an object"})); // true
*/
module.exports.isJSON = function(string){
	let stringIsJson = false;
	let x
	try {
		x = JSON.parse(string);
	} catch (e){
		return false;
	}
	if(typeof x == "object" || typeof string == "object"){
		stringIsJson = true;
	}
	return stringIsJson;
}