Minor low-hanging changes to improve jshint performance

lib/dialects/mysql/query-generator.js

@@ -15,7 +15,7 @@ var processAndEscapeValue = function(value) {
 module.exports = (function() {
   var QueryGenerator = {
     addSchema: function(opts) {
-      var tableName     = undefined
+      var tableName
       var schema        = (!!opts && !!opts.options && !!opts.options.schema ? opts.options.schema : undefined)
       var schemaDelimiter  = (!!opts && !!opts.options && !!opts.options.schemaDelimiter ? opts.options.schemaDelimiter : undefined)
 
@@ -141,7 +141,7 @@ module.exports = (function() {
       var query      = "ALTER TABLE `<%= tableName %>` CHANGE <%= attributes %>;"
       var attrString = []
 
-      for (attrName in attributes) {
+      for (var attrName in attributes) {
         var definition = attributes[attrName]
 
         attrString.push(Utils._.template('`<%= attrName %>` `<%= attrName %>` <%= definition %>')({
@@ -291,7 +291,7 @@ module.exports = (function() {
       options = options || {}
 
       var table = QueryGenerator.addQuotes(tableName)
-      var where = QueryGenerator.getWhereConditions(where)
+      where = QueryGenerator.getWhereConditions(where)
       var limit = ""
 
       if(Utils._.isUndefined(options.limit)) {
@@ -311,7 +311,7 @@ module.exports = (function() {
       options = options || {}
 
       var table = QueryGenerator.addQuotes(tableName)
-      var where = QueryGenerator.getWhereConditions(where)
+      where = QueryGenerator.getWhereConditions(where)
 
       var query = "DELETE FROM " + table + " WHERE " + where
 
@@ -331,8 +331,8 @@ module.exports = (function() {
       }
 
       var table = QueryGenerator.addQuotes(tableName)
-      var values =  values.join(",")
-      var where = QueryGenerator.getWhereConditions(where)
+      values = values.join(",")
+      where = QueryGenerator.getWhereConditions(where)
 
       var query = "UPDATE " + table + " SET " + values + " WHERE " + where
 
@@ -431,7 +431,7 @@ module.exports = (function() {
 
         if (Array.isArray(value)) {
           // is value an array?
-          if (value.length == 0) { value = [null] }
+          if (value.length === 0) { value = [null] }
           _value = "(" + value.map(function(subValue) {
             return Utils.escape(subValue);
           }).join(',') + ")"
@@ -481,7 +481,7 @@ module.exports = (function() {
             template += " auto_increment"
           }
 
-          if ((dataType.defaultValue != undefined) && (dataType.defaultValue != DataTypes.NOW)) {
+          if ((dataType.defaultValue !== undefined) && (dataType.defaultValue != DataTypes.NOW)) {
             template += " DEFAULT " + Utils.escape(dataType.defaultValue)
           }