update

index.js

@@ -29,7 +29,7 @@ class Mysqli {
         host,
         port,
         user,
-        charset,
+        charset = 'utf8mb4',
         passwd: password,
         db: database,
         timezone,
@@ -39,7 +39,6 @@ class Mysqli {
       let name = i < 1 ? 'MASTER' : 'SLAVE' + i
       let collate
 
-      charset = charset || 'utf8mb4'
       collate =
         charset + (charset === 'utf8mb4' ? '_0900_ai_ci' : '_general_ci')
 

lib/api.js

@@ -79,7 +79,6 @@ class Api {
     if (!this.db && db) {
       return Promise.reject('No database selected.')
     }
-    let defer = Promise.defer()
 
     return this.query(`DROP DATABASE IF EXISTS ${db || this.db}`)
   }

lib/method.js

@@ -128,7 +128,18 @@ class Method {
       }
     }
 
-    let { table, leftJoin, rightJoin, join, filter, fields, sort, skip, size, limit } = this.cache
+    let {
+      table,
+      leftJoin,
+      rightJoin,
+      join,
+      filter,
+      fields,
+      sort,
+      skip,
+      size,
+      limit
+    } = this.cache
 
     // 没有使用 slice方法的前提下, 通过skip/limit补全
     if (!limit) {

lib/utils.js

@@ -8,10 +8,7 @@ const { escape } = require('mysql')
 
 function hideProperty(host, name, value) {
   Object.defineProperty(host, name, {
-    value: value,
-    writable: true,
-    enumerable: false,
-    configurable: true
+    value: value
   })
 }
 
@@ -19,11 +16,9 @@ function getType(val) {
   if (val === null) {
     return String(val)
   }
-  return Object.prototype.toString
-    .call(val)
-    .slice(8, -1)
-    .toLowerCase()
+  return Object.prototype.toString.call(val).slice(8, -1).toLowerCase()
 }
+
 function parse$or(arr) {
   let sql = ''
   for (let it of arr) {
@@ -299,7 +294,9 @@ class SqlErr {
     hideProperty(this, 'stack', msg)
     console.error(
       line +
-        `\n[${new Date().format('Y/m/d_H:i:s')}][Last Query SQL]: ${sql}\nQuery ${msg}\n` +
+        `\n[${new Date().format(
+          'Y/m/d_H:i:s'
+        )}][Last Query SQL]: ${sql}\nQuery ${msg}\n` +
         line
     )
   }