我必须为支付网关使用两个外部脚本。现在,两者都放入index.html
文件中。但是,我不想在一开始就加载这些文件。仅当用户打开特定组件(using router-view
)时才需要支付网关。
反正有实现这一目标的方法吗?
我必须为支付网关使用两个外部脚本。现在,两者都放入index.html
文件中。但是,我不想在一开始就加载这些文件。仅当用户打开特定组件(using router-view
)时才需要支付网关。
反正有实现这一目标的方法吗?
Answers:
解决此问题的一种简单有效的方法是将外部脚本添加到mounted()
组件的Vue 中。我将用Google Recaptcha脚本向您说明:
<template>
.... your HTML
</template>
<script>
export default {
data: () => ({
......data of your component
}),
mounted() {
let recaptchaScript = document.createElement('script')
recaptchaScript.setAttribute('src', 'https://www.google.com/recaptcha/api.js')
document.head.appendChild(recaptchaScript)
},
methods: {
......methods of your component
}
}
</script>
资料来源:https : //medium.com/@lassiuosukainen/how-to-include-a-script-tag-on-a-vue-component-fe10940af9e8
created()
方法无法获取文档,请mounted()
改用
recaptchaScript.async = true
追加到头上了。
recaptchaScript.defer = true
也许也适合某人
我已经下载了一些自定义js文件和jquery附带的HTML模板。我不得不将那些js附加到我的应用程序中。并继续使用Vue。
找到了这个插件,这是通过CDN和静态文件https://www.npmjs.com/package/vue-plugin-load-script添加外部脚本的一种干净方法
// local files
// you have to put your scripts into the public folder.
// that way webpack simply copy these files as it is.
Vue.loadScript("/js/jquery-2.2.4.min.js")
// cdn
Vue.loadScript("https://maps.googleapis.com/maps/api/js")
使用webpack和vue loader,您可以执行以下操作
它在创建组件之前等待外部脚本加载,因此globar vars等在组件中可用
components: {
SomeComponent: () => {
return new Promise((resolve, reject) => {
let script = document.createElement('script')
script.onload = () => {
resolve(import(someComponent))
}
script.async = true
script.src = 'https://maps.googleapis.com/maps/api/js?key=APIKEY&libraries=places'
document.head.appendChild(script)
})
}
},
您是否正在为vue使用Webpack入门模板之一(https://github.com/vuejs-templates/webpack)?它已经通过vue-loader(https://github.com/vuejs/vue-loader)进行了设置。如果您不使用入门模板,则必须设置webpack和vue-loader。
然后,您可以import
将脚本添加到相关(单个文件)组件。在此之前,您必须export
从脚本中将所需的内容添加import
到组件中。
ES6进口:
- https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/import
- http://exploringjs.com/es6/ch_modules.html
〜编辑〜
您可以从这些包装进口:
- https://github.com/matfish2/vue-stripe
- https://github.com/khoanguyen96/vue-paypal-checkout
您可以使用vue-head程序包向vue组件的头部添加脚本和其他标签。
它很简单:
var myComponent = Vue.extend({
data: function () {
return {
...
}
},
head: {
title: {
inner: 'It will be a pleasure'
},
// Meta tags
meta: [
{ name: 'application-name', content: 'Name of my application' },
{ name: 'description', content: 'A description of the page', id: 'desc' }, // id to replace intead of create element
// ...
// Twitter
{ name: 'twitter:title', content: 'Content Title' },
// with shorthand
{ n: 'twitter:description', c: 'Content description less than 200 characters'},
// ...
// Google+ / Schema.org
{ itemprop: 'name', content: 'Content Title' },
{ itemprop: 'description', content: 'Content Title' },
// ...
// Facebook / Open Graph
{ property: 'fb:app_id', content: '123456789' },
{ property: 'og:title', content: 'Content Title' },
// with shorthand
{ p: 'og:image', c: 'https://example.com/image.jpg' },
// ...
],
// link tags
link: [
{ rel: 'canonical', href: 'http://example.com/#!/contact/', id: 'canonical' },
{ rel: 'author', href: 'author', undo: false }, // undo property - not to remove the element
{ rel: 'icon', href: require('./path/to/icon-16.png'), sizes: '16x16', type: 'image/png' },
// with shorthand
{ r: 'icon', h: 'path/to/icon-32.png', sz: '32x32', t: 'image/png' },
// ...
],
script: [
{ type: 'text/javascript', src: 'cdn/to/script.js', async: true, body: true}, // Insert in body
// with shorthand
{ t: 'application/ld+json', i: '{ "@context": "http://schema.org" }' },
// ...
],
style: [
{ type: 'text/css', inner: 'body { background-color: #000; color: #fff}', undo: false },
// ...
]
}
})
查看此链接以获取更多示例。
如果您尝试将外部js脚本嵌入到vue.js组件模板中,请执行以下操作:
我想像这样向我的组件添加一个外部javascript嵌入代码:
<template>
<div>
This is my component
<script src="https://badge.dimensions.ai/badge.js"></script>
</div>
<template>
Vue向我显示了此错误:
模板仅应负责将状态映射到UI。避免在模板中放置带有副作用的标签,例如,因为它们不会被解析。
我解决它的方法是添加
type="application/javascript"
(请参阅此问题以了解有关js的MIME类型的更多信息):
<script type="application/javascript" defer src="..."></script>
您可能会注意到该defer
属性。如果您想了解更多,请观看Kyle的视频
您可以使用基于promise的解决方案加载所需的脚本:
export default {
data () {
return { is_script_loading: false }
},
created () {
// If another component is already loading the script
this.$root.$on('loading_script', e => { this.is_script_loading = true })
},
methods: {
load_script () {
let self = this
return new Promise((resolve, reject) => {
// if script is already loading via another component
if ( self.is_script_loading ){
// Resolve when the other component has loaded the script
this.$root.$on('script_loaded', resolve)
return
}
let script = document.createElement('script')
script.setAttribute('src', 'https://www.google.com/recaptcha/api.js')
script.async = true
this.$root.$emit('loading_script')
script.onload = () => {
/* emit to global event bus to inform other components
* we are already loading the script */
this.$root.$emit('script_loaded')
resolve()
}
document.head.appendChild(script)
})
},
async use_script () {
try {
await this.load_script()
// .. do what you want after script has loaded
} catch (err) { console.log(err) }
}
}
}
请注意,this.$root
这有点麻烦,您应该对全局事件使用vuex或eventHub解决方案。
您可以将以上内容制成组件,并在需要的地方使用它,它只会在使用时加载脚本。
可以这样简单地完成。
created() {
var scripts = [
"https://cloudfront.net/js/jquery-3.4.1.min.js",
"js/local.js"
];
scripts.forEach(script => {
let tag = document.createElement("script");
tag.setAttribute("src", script);
document.head.appendChild(tag);
});
}
要保持组件清洁,可以使用mixins。
在您的组件上导入外部mixin文件。
Profile.vue
import externalJs from '@client/mixins/externalJs';
export default{
mounted(){
this.externalJsFiles();
}
}
externalJs.js
import('@JSassets/js/file-upload.js').then(mod => {
// your JS elements
})
babelrc(如果有导入卡住,我会包括在内)
{
"presets":["@babel/preset-env"],
"plugins":[
[
"module-resolver", {
"root": ["./"],
alias : {
"@client": "./client",
"@JSassets": "./server/public",
}
}
]
}
在mount中创建标记的最佳答案是好的,但是它存在一些问题:如果多次更改链接,它将反复重复创建标记。
因此,我创建了一个脚本来解决此问题,并且可以根据需要删除标签。
这很简单,但是可以节省您自己创建时间。
// PROJECT/src/assets/external.js
function head_script(src) {
if(document.querySelector("script[src='" + src + "']")){ return; }
let script = document.createElement('script');
script.setAttribute('src', src);
script.setAttribute('type', 'text/javascript');
document.head.appendChild(script)
}
function body_script(src) {
if(document.querySelector("script[src='" + src + "']")){ return; }
let script = document.createElement('script');
script.setAttribute('src', src);
script.setAttribute('type', 'text/javascript');
document.body.appendChild(script)
}
function del_script(src) {
let el = document.querySelector("script[src='" + src + "']");
if(el){ el.remove(); }
}
function head_link(href) {
if(document.querySelector("link[href='" + href + "']")){ return; }
let link = document.createElement('link');
link.setAttribute('href', href);
link.setAttribute('rel', "stylesheet");
link.setAttribute('type', "text/css");
document.head.appendChild(link)
}
function body_link(href) {
if(document.querySelector("link[href='" + href + "']")){ return; }
let link = document.createElement('link');
link.setAttribute('href', href);
link.setAttribute('rel', "stylesheet");
link.setAttribute('type', "text/css");
document.body.appendChild(link)
}
function del_link(href) {
let el = document.querySelector("link[href='" + href + "']");
if(el){ el.remove(); }
}
export {
head_script,
body_script,
del_script,
head_link,
body_link,
del_link,
}
您可以像这样使用它:
// PROJECT/src/views/xxxxxxxxx.vue
......
<script>
import * as external from '@/assets/external.js'
export default {
name: "xxxxxxxxx",
mounted(){
external.head_script('/assets/script1.js');
external.body_script('/assets/script2.js');
external.head_link('/assets/style1.css');
external.body_link('/assets/style2.css');
},
destroyed(){
external.del_script('/assets/script1.js');
external.del_script('/assets/script2.js');
external.del_link('/assets/style1.css');
external.del_link('/assets/style2.css');
},
}
</script>
......
您可以使用vue-loader并将组件编码在自己的文件中(单个文件组件)。这将允许您在组件的基础上包括脚本和CSS。
最简单的解决方案是将脚本添加到index.html
您的vue-project文件中
index.html:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>vue-webpack</title>
</head>
<body>
<div id="app"></div>
<!-- start Mixpanel --><script type="text/javascript">(function(c,a){if(!a.__SV){var b=window;try{var d,m,j,k=b.location,f=k.hash;d=function(a,b){return(m=a.match(RegExp(b+"=([^&]*)")))?m[1]:null};f&&d(f,"state")&&(j=JSON.parse(decodeURIComponent(d(f,"state"))),"mpeditor"===j.action&&(b.sessionStorage.setItem("_mpcehash",f),history.replaceState(j.desiredHash||"",c.title,k.pathname+k.search)))}catch(n){}var l,h;window.mixpanel=a;a._i=[];a.init=function(b,d,g){function c(b,i){var a=i.split(".");2==a.length&&(b=b[a[0]],i=a[1]);b[i]=function(){b.push([i].concat(Array.prototype.slice.call(arguments,
0)))}}var e=a;"undefined"!==typeof g?e=a[g]=[]:g="mixpanel";e.people=e.people||[];e.toString=function(b){var a="mixpanel";"mixpanel"!==g&&(a+="."+g);b||(a+=" (stub)");return a};e.people.toString=function(){return e.toString(1)+".people (stub)"};l="disable time_event track track_pageview track_links track_forms track_with_groups add_group set_group remove_group register register_once alias unregister identify name_tag set_config reset opt_in_tracking opt_out_tracking has_opted_in_tracking has_opted_out_tracking clear_opt_in_out_tracking people.set people.set_once people.unset people.increment people.append people.union people.track_charge people.clear_charges people.delete_user people.remove".split(" ");
for(h=0;h<l.length;h++)c(e,l[h]);var f="set set_once union unset remove delete".split(" ");e.get_group=function(){function a(c){b[c]=function(){call2_args=arguments;call2=[c].concat(Array.prototype.slice.call(call2_args,0));e.push([d,call2])}}for(var b={},d=["get_group"].concat(Array.prototype.slice.call(arguments,0)),c=0;c<f.length;c++)a(f[c]);return b};a._i.push([b,d,g])};a.__SV=1.2;b=c.createElement("script");b.type="text/javascript";b.async=!0;b.src="undefined"!==typeof MIXPANEL_CUSTOM_LIB_URL?
MIXPANEL_CUSTOM_LIB_URL:"file:"===c.location.protocol&&"//cdn.mxpnl.com/libs/mixpanel-2-latest.min.js".match(/^\/\//)?"https://cdn.mxpnl.com/libs/mixpanel-2-latest.min.js":"//cdn.mxpnl.com/libs/mixpanel-2-latest.min.js";d=c.getElementsByTagName("script")[0];d.parentNode.insertBefore(b,d)}})(document,window.mixpanel||[]);
mixpanel.init("xyz");</script><!-- end Mixpanel -->
<script src="/dist/build.js"></script>
</body>
</html>
/public/index.html
吗?