FremyCompany/index.html

## index.html
<!doctype html><script onload="document.scripts[0].remove()">
var html =
`<html>
	<head>
		<title>Test page</title>
		<style>
			input:hover {
				outline: 3px solid red;
			}
		</style>
	</head>
	<body>
		<input type=button onclick="dumpLines()" value="dump lines" />
	</body>
</html>`;

var htmlLines = html.split("\n");
for(var lineIndex = 0; lineIndex < htmlLines.length; lineIndex++) {
	document.writeln(htmlLines[lineIndex]);
	for(var i = document.all.length; i--;) {
		if(document.all[i].sourceLine == undefined) {
			document.all[i].sourceLine = 1+lineIndex;
		} else {
			break;
		}
	}
}

function dumpLines() {
	var text = "Elements and their computed source line:\n";
	for(var i = 0; i<document.all.length; i++) {
		text += ('- ' + document.all[i].tagName + ': ' + document.all[i].sourceLine) + "\n";
	}
	alert(text);
}
</script>
	<!doctype html><script onload="document.scripts[0].remove()">
	var html =
	`<html>
	<head>
	<title>Test page</title>
	<style>
	input:hover {
	outline: 3px solid red;
	}
	</style>
	</head>
	<body>
	<input type=button onclick="dumpLines()" value="dump lines" />
	</body>
	</html>`;

	var htmlLines = html.split("\n");
	for(var lineIndex = 0; lineIndex < htmlLines.length; lineIndex++) {
	document.writeln(htmlLines[lineIndex]);
	for(var i = document.all.length; i--;) {
	if(document.all[i].sourceLine == undefined) {
	document.all[i].sourceLine = 1+lineIndex;
	} else {
	break;
	}
	}
	}

	function dumpLines() {
	var text = "Elements and their computed source line:\n";
	for(var i = 0; i<document.all.length; i++) {
	text += ('- ' + document.all[i].tagName + ': ' + document.all[i].sourceLine) + "\n";
	}
	alert(text);
	}
	</script>