fix: check version and use built in replace all

source/utilities.js

@@ -1,5 +1,17 @@
-// TODO: When targeting Node.js 16, use `String.prototype.replaceAll`.
+const SUPPORTED_NODE_VER = 16;
+
 export function stringReplaceAll(string, substring, replacer) {
+	if (
+		getVersion()?.major >= SUPPORTED_NODE_VER
+		typeof String.prototype.replaceAll === "function" &&
+	) {
+		return string.replaceAll(substring, replacer);
+	}
+
+	return _stringReplaceAllPolyfill(string, substring, replacer);
+}
+
+function _stringReplaceAllPolyfill(string, substring, replacer) {
 	let index = string.indexOf(substring);
 	if (index === -1) {
 		return string;
@@ -7,7 +19,7 @@ export function stringReplaceAll(string, substring, replacer) {
 
 	const substringLength = substring.length;
 	let endIndex = 0;
-	let returnValue = '';
+	let returnValue = "";
 	do {
 		returnValue += string.slice(endIndex, index) + substring + replacer;
 		endIndex = index + substringLength;
@@ -20,14 +32,33 @@ export function stringReplaceAll(string, substring, replacer) {
 
 export function stringEncaseCRLFWithFirstIndex(string, prefix, postfix, index) {
 	let endIndex = 0;
-	let returnValue = '';
+	let returnValue = "";
 	do {
-		const gotCR = string[index - 1] === '\r';
+		const gotCR = string[index - 1] === "\r";
-		returnValue += string.slice(endIndex, (gotCR ? index - 1 : index)) + prefix + (gotCR ? '\r\n' : '\n') + postfix;
+		returnValue +=
+			string.slice(endIndex, gotCR ? index - 1 : index) +
+			prefix +
+			(gotCR ? "\r\n" : "\n") +
+			postfix;
 		endIndex = index + 1;
-		index = string.indexOf('\n', endIndex);
+		index = string.indexOf("\n", endIndex);
 	} while (index !== -1);
 
 	returnValue += string.slice(endIndex);
 	return returnValue;
 }
+
+function getVersion() {
+	const nodeVersion = process.version;
+	if (!nodeVersion) {
+		return null;
+	}
+
+	const parts = nodeVersion.split(".");
+
+	return {
+		major: parseInt(parts[0]),
+		minor: parseInt(parts[1]),
+		patch: parseInt(parts[2]),
+	};
+}