Cash in your code

After my latest heist, I needed a place to stash the lucre, so I put it in your program!

Your program should output “No money” if unmodified. The string “$$$” may be inserted into your code at the 10th position from the beginning, the middle position (rounding down), or 10th from the end. If so, your program should output “$$$”.

For example, if your code looks like:

0123456789____9876543210

Then the following programs should output $$$:

0123456789$$$____9876543210
0123456789__$$$__9876543210
0123456789____$$$9876543210

Judge

(async function*(context: Context): Challenge {
	yield (await context.run(undefined)).assertEquals('No money').setName("No cash stashed in your code");
	
	//use an array so slice doesn't split Unicode surrogates
	const code = [...context.code];
	for(const pos of [10, Math.floor(code.length / 2), -10])
	{
		const new_code = [...code.slice(0, pos), "$$$", ...code.slice(pos)].join("");
		const runRes = await context.runCode(new_code);
		const result = runRes.assertEquals("$$$").setName("$$$ stashed in your code (position " + pos + ")");
		if (result.pass !== "Pass") {
		    result.resultDisplay = { Text: new_code };
		}
		yield result;
	}
	
	return context.noFailures();
})

Example Code

bag1 = "  ";
f=()=> {
	if((bag1+bag2+bag3).includes("$$$"))
		console.log("$$$");
	else
		console.log("No money");
}
bag2 = "                                                                                     ";
bag3 = "                                                                                     ";
f();