vue项目中一键移除项目的jquery

向右看齐 2022-09-12 14:48 217阅读 0赞

### 前言： ###

### 这个工具的名字叫 replace-jquery ，据说是能帮你从项目中自动查找所有用到的jquery方法，并生成一套原生js的方法去替代 ###

## 使用方式 ##

### 1、全局下载 ###

cnpm install -g replace-jquery

### 2、在项目目录使用，语法为：`replace-jquery 目标js文件 生成的js文件` ###

replace-jquery main.js newMain.js

该工具会自动找到你文件中所有用到的jquery方法。此处有一个确认的步骤，你可以选择想要替换哪些方法（默认是全选的）

![图片][60639e2516213d261c80a05ef3d64d2e.png]

生成过程

按回车键即可完成替换，并生成新的文件

### 3、简单看了一下，似乎就是把我们用到的jquery方法替换成了简单的原生方法，并封装在`Utils`这个类中，那么我们每次调用`$("xxx")`时，其实就是在调用该类上的方法，那么对这个文件做一些修改 ###

export class Utils {
        constructor(selector) {
            this.elements = Utils.getSelector(selector);
            this.element = this.get(0);
            return this;
        }
    
        on(events, listener) {
            events.split(' ').forEach((eventName) => {
                this.each((el) => {
                    const tNEventName = Utils.setEventName(el, eventName);
                    if (!Array.isArray(Utils.eventListeners[tNEventName])) {
                        Utils.eventListeners[tNEventName] = [];
                    }
                    Utils.eventListeners[tNEventName].push(listener);
    
                    // https://github.com/microsoft/TypeScript/issues/28357
                    if (el) {
                        el.addEventListener(eventName.split('.')[0], listener);
                    }
                });
            });
    
            return this;
        }
        remove() {
            this.each((el) => {
                el.parentNode.removeChild(el);
            });
            return this;
        }
        css(css, value) {
            if (value !== undefined) {
                this.each((el) => {
                    Utils.setCss(el, css, value);
                });
                return this;
            }
            if (typeof css === 'object') {
                for (const property in css) {
                    if (Object.prototype.hasOwnProperty.call(css, property)) {
                        this.each((el) => {
                            Utils.setCss(el, property, css[property]);
                        });
                    }
                }
                return this;
            }
            const cssProp = Utils.camelCase(css);
            const property = Utils.styleSupport(cssProp);
            return getComputedStyle(this.element)[property];
        }
        static getSelector(selector, context) {
            if (selector && typeof selector !== 'string') {
                if (selector.length !== undefined) {
                    return selector;
                }
                return [selector];
            }
            context = context || document;
    
            // For performance reasons, use getElementById
            // eslint-disable-next-line no-control-regex
            const idRegex = /^#(?:[\w-]|\\.|[^\x00-\xa0])*$/;
            if (idRegex.test(selector)) {
                const el = document.getElementById(selector.substring(1));
                return el ? [el] : [];
            }
            return [].slice.call(context.querySelectorAll(selector) || []);
        }
        get(index) {
            if (index !== undefined) {
                return this.elements[index];
            }
            return this.elements;
        }
        each(func) {
            if (!this.elements.length) {
                return this;
            }
            this.elements.forEach((el, index) => {
                func.call(el, el, index);
            });
            return this;
        }
        static setEventName(el, eventName) {
            // Need to verify https://stackoverflow.com/questions/1915341/whats-wrong-with-adding-properties-to-dom-element-objects
            const elementUUId = el.eventEmitterUUID;
            const uuid = elementUUId || Utils.generateUUID();
            // eslint-disable-next-line no-param-reassign
            el.eventEmitterUUID = uuid;
            return Utils.getEventName(eventName, uuid);
        }
        static setCss(el, prop, value) {
            // prettier-ignore
            let cssProperty = Utils.camelCase(prop);
            cssProperty = Utils.styleSupport(cssProperty);
            el.style[cssProperty] = value;
        }
        static camelCase(text) {
            return text.replace(/-([a-z])/gi, (s, group1) => group1.toUpperCase());
        }
        static styleSupport(prop) {
            let vendorProp;
            let supportedProp;
            const capProp = prop.charAt(0).toUpperCase() + prop.slice(1);
            const prefixes = ['Moz', 'Webkit', 'O', 'ms'];
            let div = document.createElement('div');
    
            if (prop in div.style) {
                supportedProp = prop;
            } else {
                for (let i = 0; i < prefixes.length; i++) {
                    vendorProp = prefixes[i] + capProp;
                    if (vendorProp in div.style) {
                        supportedProp = vendorProp;
                        break;
                    }
                }
            }
    
            div = null;
            return supportedProp;
        }
        static generateUUID() {
            return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {
                // eslint-disable-next-line no-bitwise
                const r = (Math.random() * 16) | 0;
                // eslint-disable-next-line no-bitwise
                const v = c === 'x' ? r : (r & 0x3) | 0x8;
                return v.toString(16);
            });
        }
        static getEventName(eventName, uuid) {
            return `${eventName}__EVENT_EMITTER__${uuid}`;
        }
    }
    
    Utils.eventListeners = {};
    
    export default function $utils(selector) {
        return new Utils(selector);
    }

[60639e2516213d261c80a05ef3d64d2e.png]: /images/20220828/0ef5ac7fb388437c908e92bf4dbfb304.png