perf: replace lodash.omit with native alternative

lib/schema-manager.js

@@ -1,8 +1,7 @@
 const _assign = require('lodash.assign');
 const _merge = require('lodash.merge');
-const _omit = require('lodash.omit');
 const plural = require('pluralize');
-const { capitalize, pick } = require('./utils/lodash-natives');
+const { capitalize, omit, pick } = require('./utils/lodash-natives');
 
 const StrategyInterface = require('./strategy-interface');
 const TypeMapper = require('./type-mapper');
@@ -267,7 +266,7 @@ class SchemaManager {
     }
 
     if (_modelOptions.get(this).exclude.length > 0) {
-      return _omit(attributes, _modelOptions.get(this).exclude);
+      return omit(attributes, _modelOptions.get(this).exclude);
     }
 
     return attributes;

lib/utils/lodash-natives.js

@@ -13,6 +13,9 @@
 /* eslint-disable no-param-reassign */
 /* eslint-disable unicorn/prevent-abbreviations  */
 
+// ---------------------------------------------------
+// capitalize
+// ---------------------------------------------------
 const capitalize = function(string) {
   if (typeof string !== 'string') {
     throw new TypeError("The 'string' argument for _capitalize() must be a string");
@@ -21,16 +24,41 @@ const capitalize = function(string) {
   return string.charAt(0).toUpperCase() + string.slice(1);
 };
 
+// ---------------------------------------------------
+// omit
+// ---------------------------------------------------
+const inProps = function(key, props) {
+  return props.some(omitKey => {
+    return omitKey === key;
+  });
+};
+
+const omit = function(object, properties) {
+  const newObject = {};
+  Object.keys(object).forEach(key => {
+    if (!inProps(key, properties)) {
+      newObject[key] = object[key];
+    }
+  });
+
+  return newObject;
+};
+
+// ---------------------------------------------------
+// pick
+// ---------------------------------------------------
 const pick = function(object, keys) {
   return keys.reduce((obj, key) => {
     if (object && object.hasOwnProperty(key)) {
       obj[key] = object[key];
     }
+
     return obj;
   }, {});
 };
 
 module.exports = {
   capitalize,
+  omit,
   pick,
 };

package.json

@@ -48,7 +48,6 @@
   "dependencies": {
     "lodash.assign": "^4.2.0",
     "lodash.merge": "^4.6.2",
-    "lodash.omit": "^4.5.0",
     "pluralize": "^8.0.0"
   },
   "devDependencies": {