Add web front-end and fix API issues

node_modules/concurrently/dist/lib/assert.js

@@ -0,0 +1,24 @@
+const deprecations = new Set();
+/**
+ * Asserts that some condition is true, and if not, prints a warning about it being deprecated.
+ * The message is printed only once.
+ */
+export function assertDeprecated(check, name, message) {
+    if (!check && !deprecations.has(name)) {
+        // eslint-disable-next-line no-console
+        console.warn(`[concurrently] ${name} is deprecated. ${message}`);
+        deprecations.add(name);
+    }
+}
+const runtimes = new Set();
+/**
+ * Asserts that some condition is true, and if not, prints a warning about the runtime not being well supported.
+ * The message is printed only once.
+ */
+export function assertNotRuntime(check, name, message) {
+    if (!check && !runtimes.has(name)) {
+        // eslint-disable-next-line no-console
+        console.warn(`[concurrently] Running via ${name} is not well supported. ${message}`);
+        runtimes.add(name);
+    }
+}