diff --git a/web_widget_char_switchcase/static/src/js/web_widget_char_switchcase.js b/web_widget_char_switchcase/static/src/js/web_widget_char_switchcase.js
index 60320c64..4475fd3c 100644
--- a/web_widget_char_switchcase/static/src/js/web_widget_char_switchcase.js
+++ b/web_widget_char_switchcase/static/src/js/web_widget_char_switchcase.js
@@ -1,37 +1,47 @@
 odoo.define('web_widget_char_switchcase', function (require) {
     "use strict";
 
-    var core = require('web.core');
-    var formats = require('web.formats');
     var form_widgets = require('web.form_widgets');
 
     form_widgets.FieldChar.include({
         events: _.extend({}, form_widgets.FieldChar.prototype.events, {
             'keyup': '_onKeyUp',
         }),
-        transformations: ['default', 'upper', 'lower', 'title', 'sentence', 'camel', 'pascal', 'snake'],
+        transformations: [
+            'default',
+            'upper',
+            'lower',
+            'title',
+            'sentence',
+            'camel',
+            'pascal',
+            'snake',
+        ],
         init: function (field_manager, node) {
             this._super(field_manager, node);
             this.options = _.defaults(this.options, {
-                transform: this.transformations[0]
+                transform: this.transformations[0],
             });
-            this.current_transformation = this.options['transform'];
-            this.current_transformation_handler = this.get_transformation_handler()
-            if (!_.contains(this.transformations, this.current_transformation))
+            this.current_transformation = this.options.transform;
+            this.current_transformation_handler =
+                this.get_transformation_handler();
+            if (!_.contains(this.transformations,
+                this.current_transformation)) {
                 console.error(this.current_transformation + ' case unknown');
+            }
         },
-        _onKeyUp: function (event) {
-            // save caret position
+        _onKeyUp: function () {
+            // Save caret position
             var input = this.$input[0];
             var start = input.selectionStart;
             var end = input.selectionEnd;
-            
-            // transform the value
+
+            // Transform the value
             var old_val = this.$input.val();
             var new_val = this.current_transformation_handler(old_val);
             this.$input.val(new_val);
 
-            // restore caret position
+            // Restore caret position
             input.setSelectionRange(start, end);
         },
         parse_value: function (val, def) {
@@ -45,82 +55,98 @@ odoo.define('web_widget_char_switchcase', function (require) {
         },
         get_transformation_handler: function () {
             switch (this.current_transformation) {
-                case 'upper':
-                    // HELLO WORLD!
-                    return function (val) {
-                        if (!this.check_val(val)) return val;
-                        return val.toUpperCase();};
-                case 'lower':
-                    // hello world!
-                    return function (val) {
-                        if (!this.check_val(val)) return val;
-                        return val.toLowerCase();};
-                case 'title':
-                    // Hello World!
-                    return function (val) {
-                        if (!this.check_val(val)) return val;
-                        return val.replace(
-                            /\w\S*/g,
-                            function(txt) {
-                                return txt.charAt(0).toUpperCase()
-                                + txt.substr(1).toLowerCase();
-                            });
-                        };
-                case 'sentence':
-                    // Hello world!
-                    return function (val) {
-                        if (!this.check_val(val)) return val;
-                        var first = true;
-                        return val.replace(
-                            /\w\S*/g,
-                            function(txt) {
-                                if (first){
-                                    first = false;
-                                    return txt.charAt(0).toUpperCase()
-                                    + txt.substr(1).toLowerCase();
-                                }
-                                else
-                                    return txt.toLowerCase();
-                            });
-                        };
-                case 'camel':
-                    // helloWorld!
-                    return function (val) {
-                        if (!this.check_val(val)) return val;
-                        var first = true;
-                        return val.replace(
-                            /\w\S*/g,
-                            function(txt) {
-                                if (first){
-                                    first = false;
-                                    return txt.toLowerCase();
-                                }
-                                else
-                                    return txt.charAt(0).toUpperCase()
-                                    + txt.substr(1).toLowerCase();
-                            }).replace(' ', '');
-                        };
-                case 'pascal':
-                    // HelloWorld!
-                    return function (val) {
-                        if (!this.check_val(val)) return val;
-                        return val.replace(
-                            /\w\S*/g,
-                            function(txt) {
-                                return txt.charAt(0).toUpperCase()
-                                + txt.substr(1).toLowerCase();
-                            }).replace(' ', '');
-                        };
-                case 'snake':
-                    // hello_world!
-                    return function (val) {
-                        if (!this.check_val(val)) return val;
-                        return val.toLowerCase().replace(' ', '_');
-                        };
-                case 'default':
-                default:
-                    return function (val) { return val; };
+            case 'upper':
+                // Result: HELLO WORLD!
+                return function (val) {
+                    if (!this.check_val(val)) {
+                        return val;
+                    }
+                    return val.toUpperCase();
+                };
+            case 'lower':
+                // Result: hello world!
+                return function (val) {
+                    if (!this.check_val(val)) {
+                        return val;
+                    }
+                    return val.toLowerCase();
+                };
+            case 'title':
+                // Result: Hello World!
+                return function (val) {
+                    if (!this.check_val(val)) {
+                        return val;
+                    }
+                    return val.replace(
+                        /\w\S*/g,
+                        function (txt) {
+                            return txt.charAt(0).toUpperCase() +
+                                txt.substr(1).toLowerCase();
+                        });
+                };
+            case 'sentence':
+                // Result: Hello world!
+                return function (val) {
+                    if (!this.check_val(val)) {
+                        return val;
+                    }
+                    var first = true;
+                    return val.replace(
+                        /\w\S*/g,
+                        function (txt) {
+                            if (first) {
+                                first = false;
+                                return txt.charAt(0).toUpperCase() +
+                                    txt.substr(1).toLowerCase();
+                            }
+                            return txt.toLowerCase();
+                        });
+                };
+            case 'camel':
+                // Result: helloWorld!
+                return function (val) {
+                    if (!this.check_val(val)) {
+                        return val;
+                    }
+                    var first = true;
+                    return val.replace(
+                        /\w\S*/g,
+                        function (txt) {
+                            if (first) {
+                                first = false;
+                                return txt.toLowerCase();
+                            }
+                            return txt.charAt(0).toUpperCase() +
+                                txt.substr(1).toLowerCase();
+                        }).replace(' ', '');
+                };
+            case 'pascal':
+                // Result: HelloWorld!
+                return function (val) {
+                    if (!this.check_val(val)) {
+                        return val;
+                    }
+                    return val.replace(
+                        /\w\S*/g,
+                        function (txt) {
+                            return txt.charAt(0).toUpperCase() +
+                                txt.substr(1).toLowerCase();
+                        }).replace(' ', '');
+                };
+            case 'snake':
+                // Result: hello_world!
+                return function (val) {
+                    if (!this.check_val(val)) {
+                        return val;
+                    }
+                    return val.toLowerCase().replace(' ', '_');
+                };
+            case 'default':
+            default:
+                return function (val) {
+                    return val;
+                };
             }
-        }
+        },
     });
 });
diff --git a/web_widget_char_switchcase/static/test/web_widget_char_switchcase.js b/web_widget_char_switchcase/static/test/web_widget_char_switchcase.js
index 7918f4dd..0510bebd 100644
--- a/web_widget_char_switchcase/static/test/web_widget_char_switchcase.js
+++ b/web_widget_char_switchcase/static/test/web_widget_char_switchcase.js
@@ -1,90 +1,108 @@
-odoo.define_section('web_widget_char_switchcase', ['web.form_common', 'web.core', 'web.form_widgets'], function (test) {
-    'use strict';
-
-    function createField(form_common, web_form_widgets, node) {
-        var field_manager = new form_common.DefaultFieldManager(null, {});
-        var fieldWidget = new web_form_widgets.FieldChar(field_manager, node);
-        fieldWidget.setElement($('<input/>'));
-        fieldWidget.initialize_content();
-        return fieldWidget;
-    }
-
-    test('Default does nothing', function(assert, form_common, core, web_form_widgets) {
-        var fieldWidget = createField(form_common, web_form_widgets, {'attrs': {}});
-
-        var orig_val = 'Hello World!';
-        fieldWidget.$input.val(orig_val);
-        fieldWidget.$input.trigger('keyup');
-        assert.strictEqual(fieldWidget.$input.val(), orig_val);
+odoo.define_section('web_widget_char_switchcase',
+    ['web.form_common', 'web.core', 'web.form_widgets'], function (test) {
+        'use strict';
+
+        function createField (form_common, web_form_widgets, node) {
+            var field_manager = new form_common.DefaultFieldManager(null, {});
+            var fieldWidget =
+                new web_form_widgets.FieldChar(field_manager, node);
+            fieldWidget.setElement($('<input/>'));
+            fieldWidget.initialize_content();
+            return fieldWidget;
+        }
+
+        test('Default does nothing', function (
+            assert, form_common, core, web_form_widgets) {
+            var fieldWidget = createField(
+                form_common, web_form_widgets, {'attrs': {}});
+
+            var orig_val = 'Hello World!';
+            fieldWidget.$input.val(orig_val);
+            fieldWidget.$input.trigger('keyup');
+            assert.strictEqual(fieldWidget.$input.val(), orig_val);
+        });
+
+        test('UPPER OPTION', function (
+            assert, form_common, core, web_form_widgets) {
+            var node = {'attrs': {'options': "{'transform': 'upper'}"}};
+            var fieldWidget = createField(form_common, web_form_widgets, node);
+
+            var orig_val = 'Hello World!';
+            fieldWidget.$input.val(orig_val);
+            fieldWidget.$input.trigger('keyup');
+            assert.strictEqual(
+                fieldWidget.$input.val(), orig_val.toUpperCase());
+        });
+
+        test('lower option', function (
+            assert, form_common, core, web_form_widgets) {
+            var node = {'attrs': {'options': "{'transform': 'lower'}"}};
+            var fieldWidget = createField(form_common, web_form_widgets, node);
+
+            var orig_val = 'Hello World!';
+            fieldWidget.$input.val(orig_val);
+            fieldWidget.$input.trigger('keyup');
+            assert.strictEqual(
+                fieldWidget.$input.val(), orig_val.toLowerCase());
+        });
+
+        test('Title Option', function (
+            assert, form_common, core, web_form_widgets) {
+            var node = {'attrs': {'options': "{'transform': 'title'}"}};
+            var fieldWidget = createField(form_common, web_form_widgets, node);
+
+            var orig_val = 'Hello World!';
+            fieldWidget.$input.val(orig_val);
+            fieldWidget.$input.trigger('keyup');
+            assert.strictEqual(
+                fieldWidget.$input.val(), 'Hello World!');
+        });
+
+        test('Sentence option', function (
+            assert, form_common, core, web_form_widgets) {
+            var node = {'attrs': {'options': "{'transform': 'sentence'}"}};
+            var fieldWidget = createField(form_common, web_form_widgets, node);
+
+            var orig_val = 'Hello World!';
+            fieldWidget.$input.val(orig_val);
+            fieldWidget.$input.trigger('keyup');
+            assert.strictEqual(
+                fieldWidget.$input.val(), 'Hello world!');
+        });
+
+        test('camelOption', function (
+            assert, form_common, core, web_form_widgets) {
+            var node = {'attrs': {'options': "{'transform': 'camel'}"}};
+            var fieldWidget = createField(form_common, web_form_widgets, node);
+
+            var orig_val = 'Hello World!';
+            fieldWidget.$input.val(orig_val);
+            fieldWidget.$input.trigger('keyup');
+            assert.strictEqual(
+                fieldWidget.$input.val(), 'helloWorld!');
+        });
+
+        test('PascalOption', function (
+            assert, form_common, core, web_form_widgets) {
+            var node = {'attrs': {'options': "{'transform': 'pascal'}"}};
+            var fieldWidget = createField(form_common, web_form_widgets, node);
+
+            var orig_val = 'Hello World!';
+            fieldWidget.$input.val(orig_val);
+            fieldWidget.$input.trigger('keyup');
+            assert.strictEqual(
+                fieldWidget.$input.val(), 'HelloWorld!');
+        });
+
+        test('snake_option', function (
+            assert, form_common, core, web_form_widgets) {
+            var node = {'attrs': {'options': "{'transform': 'snake'}"}};
+            var fieldWidget = createField(form_common, web_form_widgets, node);
+
+            var orig_val = 'Hello World!';
+            fieldWidget.$input.val(orig_val);
+            fieldWidget.$input.trigger('keyup');
+            assert.strictEqual(
+                fieldWidget.$input.val(), 'hello_world!');
+        });
     });
-
-    test('UPPER OPTION', function(assert, form_common, core, web_form_widgets) {
-        var node = {'attrs': {'options': "{'transform': 'upper'}"}};
-        var fieldWidget = createField(form_common, web_form_widgets, node);
-
-        var orig_val = 'Hello World!';
-        fieldWidget.$input.val(orig_val);
-        fieldWidget.$input.trigger('keyup');
-        assert.strictEqual(fieldWidget.$input.val(), orig_val.toUpperCase());
-    });
-
-    test('lower option', function(assert, form_common, core, web_form_widgets) {
-        var node = {'attrs': {'options': "{'transform': 'lower'}"}};
-        var fieldWidget = createField(form_common, web_form_widgets, node);
-
-        var orig_val = 'Hello World!';
-        fieldWidget.$input.val(orig_val);
-        fieldWidget.$input.trigger('keyup');
-        assert.strictEqual(fieldWidget.$input.val(), orig_val.toLowerCase());
-    });
-
-    test('Title Option', function(assert, form_common, core, web_form_widgets) {
-        var node = {'attrs': {'options': "{'transform': 'title'}"}};
-        var fieldWidget = createField(form_common, web_form_widgets, node);
-
-        var orig_val = 'Hello World!';
-        fieldWidget.$input.val(orig_val);
-        fieldWidget.$input.trigger('keyup');
-        assert.strictEqual(fieldWidget.$input.val(), 'Hello World!');
-    });
-
-    test('Sentence option', function(assert, form_common, core, web_form_widgets) {
-        var node = {'attrs': {'options': "{'transform': 'sentence'}"}};
-        var fieldWidget = createField(form_common, web_form_widgets, node);
-
-        var orig_val = 'Hello World!';
-        fieldWidget.$input.val(orig_val);
-        fieldWidget.$input.trigger('keyup');
-        assert.strictEqual(fieldWidget.$input.val(), 'Hello world!');
-    });
-    
-    test('camelOption', function(assert, form_common, core, web_form_widgets) {
-        var node = {'attrs': {'options': "{'transform': 'camel'}"}};
-        var fieldWidget = createField(form_common, web_form_widgets, node);
-
-        var orig_val = 'Hello World!';
-        fieldWidget.$input.val(orig_val);
-        fieldWidget.$input.trigger('keyup');
-        assert.strictEqual(fieldWidget.$input.val(), 'helloWorld!');
-    });
-
-    test('PascalOption', function(assert, form_common, core, web_form_widgets) {
-        var node = {'attrs': {'options': "{'transform': 'pascal'}"}};
-        var fieldWidget = createField(form_common, web_form_widgets, node);
-
-        var orig_val = 'Hello World!';
-        fieldWidget.$input.val(orig_val);
-        fieldWidget.$input.trigger('keyup');
-        assert.strictEqual(fieldWidget.$input.val(), 'HelloWorld!');
-    });
-
-    test('snake_option', function(assert, form_common, core, web_form_widgets) {
-        var node = {'attrs': {'options': "{'transform': 'snake'}"}};
-        var fieldWidget = createField(form_common, web_form_widgets, node);
-
-        var orig_val = 'Hello World!';
-        fieldWidget.$input.val(orig_val);
-        fieldWidget.$input.trigger('keyup');
-        assert.strictEqual(fieldWidget.$input.val(), 'hello_world!');
-    });
-});