Fix const enum for TypeScript (#364)

chalk · Sep 27, 2019 · 4e65299 · 4e65299
1 parent 2a53389
commit 4e65299
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diff --git a/source/index.js b/source/index.js
@@ -223,4 +223,16 @@ chalk.supportsColor = stdoutColor;
 chalk.stderr = Chalk({level: stderrColor ? stderrColor.level : 0}); // eslint-disable-line new-cap
 chalk.stderr.supportsColor = stderrColor;
 
+// For TypeScript
+chalk.Level = {
+	None: 0,
+	Basic: 1,
+	Ansi256: 2,
+	TrueColor: 3,
+	0: 'None',
+	1: 'Basic',
+	2: 'Ansi256',
+	3: 'TrueColor'
+};
+
 module.exports = chalk;
diff --git a/test/level.js b/test/level.js
@@ -43,3 +43,15 @@ test('disable colors if they are not supported', async t => {
 	const {stdout} = await execa.node(path.join(__dirname, '_fixture'));
 	t.is(stdout, 'testout testerr');
 });
+
+test('chalk.Level enum object', t => {
+	const {Level} = chalk;
+	t.is(Level.None, 0);
+	t.is(Level.Basic, 1);
+	t.is(Level.Ansi256, 2);
+	t.is(Level.TrueColor, 3);
+	t.is(Level[Level.None], 'None');
+	t.is(Level[Level.Basic], 'Basic');
+	t.is(Level[Level.Ansi256], 'Ansi256');
+	t.is(Level[Level.TrueColor], 'TrueColor');
+});