我必须为支付网关使用两个外部脚本。
现在两者都放在index.html文件中。
但是，我不想在开头本身就加载这些文件。
只有在用户打开特定组件(使用路由器视图)时才需要支付网关。
有办法实现这个目标吗?
谢谢。
当前回答
最简单的解决方案是将脚本添加到vue-project的index.html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>
其他回答
这个用例有一个vue组件
https://github.com/TheDynomike/vue-script-component#usage
<template>
<div>
<VueScriptComponent script='<script type="text/javascript"> alert("Peekaboo!"); </script>'/>
<div>
</template>
<script>
import VueScriptComponent from 'vue-script-component'
export default {
...
components: {
...
VueScriptComponent
}
...
}
</script>
为了保持组件的干净，你可以使用mixin。
在组件上导入外部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(我包括这个，如果任何导入卡住)
{
"presets":["@babel/preset-env"],
"plugins":[
[
"module-resolver", {
"root": ["./"],
alias : {
"@client": "./client",
"@JSassets": "./server/public",
}
}
]
}
来自mejiamanuel57的答案很好，但我想添加几个适合我的技巧(我花了几个小时在上面)。首先，我需要使用“窗口”范围。此外，如果您需要访问“onload”函数内的任何Vue元素，则需要为“this”实例创建一个新变量。
<script>
import { mapActions } from "vuex";
export default {
name: "Payment",
methods: {
...mapActions(["aVueAction"])
},
created() {
let paywayScript = document.createElement("script");
let self = this;
paywayScript.onload = () => {
// call to Vuex action.
self.aVueAction();
// call to script function
window.payway.aScriptFunction();
};
// paywayScript.async = true;
paywayScript.setAttribute(
"src",
"https://api.payway.com.au/rest/v1/payway.js"
);
document.body.appendChild(paywayScript);
}
};
</script>
我在Vue 2.6上使用它。这里有一个关于“let self = this;”在Javascript中如何工作的技巧的解释:
var that = this;在JavaScript中是什么意思?
顶部的创建标签的答案是好的，但它有一些问题:如果你改变你的链接多次，它会重复创建标签一遍又一遍。
所以我创建了一个脚本来解决这个问题，如果你愿意，你可以删除标签。
它非常简单，但可以节省你自己创建的时间。
// 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,
}
你可以这样使用它:
// 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>
......
使用webpack和vue加载器，你可以这样做
在创建组件之前，它会等待外部脚本加载，因此在组件中可以使用globar vars等
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)
})
}
},
