init

test/example.ts

@@ -0,0 +1,55 @@
+import { filter } from '../src/index.ts';
+
+const users = [
+  {
+    metadata: {
+      tags: ['premium', 'active'],
+      type: 'user',
+      region: 'beijing',
+      created_at: '2024-03-15T10:00:00Z'
+    }
+  },
+  {
+    metadata: {
+      tags: ['free'],
+      type: 'admin',
+      region: 'shanghai',
+      created_at: '2024-01-10T09:00:00Z'
+    }
+  },
+  {
+    metadata: {
+      tags: ['enterprise', 'premium'],
+      type: 'user',
+      region: 'guangzhou',
+      created_at: '2024-04-05T12:00:00Z'
+    }
+  }
+];
+
+console.log('=== 方式1: users.filter(createFilter("...")) ===');
+
+console.log('\n=== premium 用户 ===');
+console.log(filter(users, "WHERE metadata.tags CONTAINS 'premium'"));
+
+console.log('\n=== 北京用户 ===');
+console.log(filter(users, "WHERE metadata.region = 'beijing'"));
+
+console.log('\n=== user 类型用户 ===');
+console.log(filter(users, "WHERE metadata.type = 'user'"));
+
+console.log('\n=== premium 且 user 类型 ===');
+console.log(filter(users, "WHERE metadata.tags CONTAINS 'premium' AND metadata.type = 'user'"));
+
+console.log('\n=== 北京或上海用户 ===');
+console.log(filter(users, "WHERE metadata.region IN ['beijing', 'shanghai']"));
+
+console.log('\n=== 方式2: filter(users, "...") (支持 ORDER BY 和 LIMIT) ===');
+
+console.log('\n=== 北京用户，按时间倒序 ===');
+console.log(filter(users, "WHERE metadata.region = 'beijing' ORDER BY metadata.created_at DESC"));
+
+console.log('\n=== 前2个用户，按时间倒序 ===');
+const limitResult = filter(users, "ORDER BY metadata.created_at DESC LIMIT 2");
+console.log('Limit result length:', limitResult.length);
+console.log(limitResult);