planning

node_modules/@mapbox/mapbox-gl-style-spec/validate/validate_string.js

@@ -0,0 +1,18 @@
+// @flow
+
+import getType from '../util/get_type.js';
+import ValidationError from '../error/validation_error.js';
+
+import type {ValidationOptions} from './validate.js';
+
+export default function validateString(options: $Shape<ValidationOptions>): Array<ValidationError> {
+    const value = options.value;
+    const key = options.key;
+    const type = getType(value);
+
+    if (type !== 'string') {
+        return [new ValidationError(key, value, `string expected, ${type} found`)];
+    }
+
+    return [];
+}