doesnt_work.js

myMethods = {

    datafields: {
        data: `span[data-field= ${this.dataAttrMeth}]`,
        clickData: `click  span[data-field= ${this.dataAttrMeth}]`,
        keyData: `keypress  span[data-field= ${this.dataAttrMeth}]`,
        blurData: `blur span[data-field= ${this.dataAttrMeth}]`,
        events: {},
        oldVal: '',
        newVal: '',
        dataAttrMeth: function(data_attr) {
            return data_attr
        }
    },

    contenteditable: function(data_attr, Collection, template, editTarget) {

        with(this.datafields) {

            events[clickData] = function(e) {
                console.log(data);
                $(data).attr('contenteditable', true);
                oldVal = e.target.textContent;
            };

            events[blurData] = function(e) {
                $(data).attr('contenteditable', false);
                newVal = e.target.textContent;

                if (oldVal !== newVal) {

                    let result = {};
                    let key = editTarget.db;
                    result[key] = newVal;

                    console.log(result);
                    Collection.findAndModify({
                        query: { _id: this._id },
                        update: { $set: result },
                        new: false
                    });
                    $(e.target).text('');
                    $.notify({
                        title: `Изменения в базе данных: `,
                        message: `<br> ${editTarget.ru}: ${newVal}`
                    }, _notifyMethods.success)
                } else {
                    $.notify({
                            title: "База данных:  ",
                            message: "<br>без изменений"
                        },
                        _notifyMethods.default);
                }
            };

            events[keyData] = function(ev) {
                if (ev.keyCode == 13 || ev.which == 13) {
                    ev.preventDefault ? ev.preventDefault() : ev.returnValue = false
                    events[blurData]()
                }
            };

            template.events(events);
        }
    }
  }

works.js

myMethods = {

    contenteditable: function(data_attr, Collection, template, editTarget) {

        let data = `span[data-field= ${data_attr}]`;
        let clickData = 'click  span[data-field=' + data_attr + ']';
        let keyData = 'keypress  span[data-field=' + data_attr + ']';
        let blurData = 'blur span[data-field=' + data_attr + ']';
        let events = {};
        let oldVal = '';
        let newVal = '';

        events[clickData] = function(e) {
            $(data).attr('contenteditable', true);
            oldVal = e.target.textContent;
        };

        events[blurData] = function(e) {
            $(data).attr('contenteditable', false);
            newVal = e.target.textContent;

            if (oldVal !== newVal) {

                let result = {};
                let key = editTarget.db;
                result[key] = newVal;

                console.log(result);
                Collection.findAndModify({
                    query: { _id: this._id },
                    update: { $set: result },
                    new: false
                });
                $(e.target).text('');
                $.notify({
                    title: `Изменения в базе данных: `,
                    message: `<br> ${editTarget.ru}: ${newVal}`
                }, _notifyMethods.success)
            } else {
                $.notify({
                        title: "База данных:  ",
                        message: "<br>без изменений"
                    },
                    _notifyMethods.default);
            }
        };

        events[keyData] = function(ev) {
            if (ev.keyCode == 13 || ev.which == 13) {
                ev.preventDefault ? ev.preventDefault() : ev.returnValue = false
                events[blurData]()
            }
        };

        template.events(events);
    }
}