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node_modules/lit-html/development/directives/choose.js

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+/**
+ * @license
+ * Copyright 2021 Google LLC
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/**
+ * Chooses and evaluates a template function from a list based on matching
+ * the given `value` to a case.
+ *
+ * Cases are structured as `[caseValue, func]`. `value` is matched to
+ * `caseValue` by strict equality. The first match is selected. Case values
+ * can be of any type including primitives, objects, and symbols.
+ *
+ * This is similar to a switch statement, but as an expression and without
+ * fallthrough.
+ *
+ * @example
+ *
+ * ```ts
+ * render() {
+ *   return html`
+ *     ${choose(this.section, [
+ *       ['home', () => html`<h1>Home</h1>`],
+ *       ['about', () => html`<h1>About</h1>`]
+ *     ],
+ *     () => html`<h1>Error</h1>`)}
+ *   `;
+ * }
+ * ```
+ */
+export const choose = (value, cases, defaultCase) => {
+    for (const c of cases) {
+        const caseValue = c[0];
+        if (caseValue === value) {
+            const fn = c[1];
+            return fn();
+        }
+    }
+    return defaultCase === null || defaultCase === void 0 ? void 0 : defaultCase();
+};
+//# sourceMappingURL=choose.js.map