jQuery没有在bootstrap-sass中定义 [英] jQuery is not defined in bootstrap-sass

问题描述

我使用angular-cli引导了Angular 2应用程序.直到我决定使用bootstrap modal之前，一切都是轻而易举的.我只是从其他不使用angular-cli的项目中复制了用于打开模态的代码.我在angular-cli.json文件中的脚本中添加了jquery和bootstrap依赖项. jQuery在项目中是公认的，但是当我尝试在角度组件中运行this.$modalEl.modal(options)时，出现错误jQuery is not defined.

I bootstrapped the Angular 2 app using angular-cli. Everything was easy-peasy until I decided to use bootstrap modal. I simply copied the code for opening the modal from our other project that doesn't use angular-cli. I added jquery and bootstrap dependencies to scripts in angular-cli.json file. jQuery is recognised in the project, but when I try to run this.$modalEl.modal(options) inside angular component I get an error that jQuery is not defined.

实际上，jQuery是作为全局$导入到项目中的.我做了一些挖掘，显然引导程序希望将jQuery作为"jQuery"变量传递给它.它不会给$带来麻烦.

Actually jQuery is imported into project but as a global $. I've done some digging and apparently bootstrap expects jQuery to be passed into it as a 'jQuery' variable. It doesn't give rat's ass about $.

我可以像在其他项目中一样在webpack.config.js文件中将jQuery公开为变量:(为简洁起见，省略了很多代码)

I could expose jQuery as a variable in webpack.config.js file like we do in other project: (a lot of code omitted for brevity)

var jQueryPlugin = {
  $: 'jquery',
  jquery: 'jquery',
  jQuery: 'jquery'
}

exports.root = root;

exports.plugins = {
  globalLibProvider: new webpack.ProvidePlugin(webpackMerge(jQueryPlugin, {
    svg4everybody: 'svg4everybody/dist/svg4everybody.js'
  }))
}

但是angular-cli开发人员团队决定不让其他开发人员混入Webpack配置文件.多谢你们！非常想你.

but angular-cli dev team decided not to let other devs meddle with webpack config files. Thanks guys! Very thoughtful of you.

我尝试将jQuery直接导入Angular组件以及此处提到的其他内容 https://github.com/angular/angular-cli/issues/3202 (将导入内容添加到vendor.ts文件中，然后将vendor.ts添加到angular-cli.json中的脚本数组中)，但没有任何效果.

I've tried importing jQuery directly into Angular component and a bunch of other things mentioned here https://github.com/angular/angular-cli/issues/3202 (adding imports to vendor.ts file and then adding vendor.ts to scripts array in angular-cli.json) but nothing works.

说实话，我很生气，像在angle-cli中添加jquery依赖项与bootstrap一起使用这样的琐碎问题就是这样的雷区.

To be honest, I am quite pissed that such a trivial issue like adding jquery dependency to be used with bootstrap in angular-cli is such a minefield.

您处理过类似的问题吗?

Have you dealt with similar problem?

推荐答案

第一步

npm install jssha --save [using jssha for this demo]
It it is your own custom file place it in the scripts array of angular-cli.json skip this step 1

第二步

Add the jssha scripts file in .angular-cli.json file
"scripts": [ "../node_modules/jssha/src/sha.js" ]
Step three Adding a var in component to be used as a global variable

//using external js modules in Angular Component
declare var jsSHA: any; // place this above the component decorator
shaObj:any;
hash:string;
this.shaObj = new jsSHA("SHA-512", "TEXT");
this.shaObj.update("This is a Test");
this.hash = this.shaObj.getHash("HEX")

在此链接中查看.它有一个有效的示例，并提供了一个有关键入(不包含键入)的问题.在该项目中，我已经在Angular中使用了bootstrap和jquery，您也可以检查存储库.

Take a look @ this link. It has a working example and a question for the same with typings and without it. I have used bootstrap and jquery with Angular in that project, you can check the repo too.

在您的情况下，您需要添加jquery文件

In your case you need to add the jquery files

像这样

  "styles": [
    "../node_modules/bootstrap-v4-dev/dist/css/bootstrap.min.css",
    "styles.css"
  ],
  "scripts": [
    "../node_modules/jquery/dist/jquery.js",
    "../node_modules/tether/dist/js/tether.min.js",
    "../node_modules/bootstrap-v4-dev/dist/js/bootstrap.min.js"

，然后在组件中声明.declare var $: any;

and then declare in component.declare var $: any;

这应该有效.

更新

我继续使用我提到的步骤，仅使用Angular中的jquery来创建引导程序的模式.

I went on to create a modal of bootstrap using just jquery in Angular using the steps i mentioned.

有效.检查此gh页面链接- LINK .

It works Check this gh page link - LINK.

，如果您要检查源代码以进行相同的检查，请 LINK .

and if you want to check the source code for the same check LINK.

我发布的答案来自此链接，这是我在Angular上的页面 LINK

The answer i posted came from this link this is my page on Angular LINK

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