ComfyUI_frontend/src/nodes/strings.js

//basic nodes
(function(global){

	var LiteGraph = global.LiteGraph;

	function toString(a)
	{
	   return String(a);
	}

	LiteGraph.wrapFunctionAsNode("string/toString",compare, ["*"],"String");
	
	function compare(a,b)
	{
	   return a==b;
	}

	LiteGraph.wrapFunctionAsNode("string/compare",compare, ["String","String"],"Boolean");

	function concatenate(a,b)
	{
		if(a === undefined)
			return b;
		if(b === undefined)
			return a;
		return a + b;
	}

	LiteGraph.wrapFunctionAsNode("string/concatenate",concatenate, ["String","String"],"String");

	function contains(a,b)
	{
		if(a === undefined || b === undefined )
			return false;
	   return a.indexOf(b) != -1;
	}

	LiteGraph.wrapFunctionAsNode("string/contains",contains, ["String","String"],"Boolean");

	function toUpperCase(a)
	{
		if(a != null && a.constructor === String)
			return a.toUpperCase();
		return a;
	}

	LiteGraph.wrapFunctionAsNode("string/toUpperCase",toUpperCase, ["String"],"String");

	function split(a,b)
	{
		if(a != null && a.constructor === String)
			return a.split(b || " ");
		return [a];
	}

	LiteGraph.wrapFunctionAsNode("string/split",toUpperCase, ["String","String"],"Array");



})(this);