Angular6 does not recognize the property 'modal' on type 'JQuery'

Encountered an issue when trying to use jQuery in TypeScript Angular6. Seeking assistance with the following error:

jQuery('#assignsp').modal('show');

Here are the steps that have been followed:

3 Steps:

1. Install jQuery. (skip if already installed)

npm install jquery --save

2. Install types for jQuery.

npm install @types/jquery --save

Import jQuery in app.module.ts.

import * as $ from 'jquery';

An error is displayed:

Error: TS2339: Property 'modal' does not exist on type 'JQuery<HTMLElement>'

Error: TS2339: Property 'modal' does not exist on type 'JQuery'

Answer №1

Attempting to juggle multiple tasks simultaneously can be overwhelming. First, you'll need to successfully integrate jQuery with TypeScript, and then tackle the integration of Bootstrap modal functionality, which relies on jQuery. Let's start by integrating jQuery before moving on to Bootstrap.

For jQuery Installation: You may have already completed some of these steps

npm install jquery --save

npm install @types/jquery --save

npm i bootstrap --save

Angular configuration: Make sure to include jQuery and Bootstrap in your configuration:

"styles":[
           "src/styles.css",
            "./node_modules/bootstrap/dist/css/bootstrap.min.css"
         ],
"scripts":[
            "./node_modules/jquery/dist/jquery.min.js",
             "./node_modules/bootstrap/dist/js/bootstrap.min.js"
           ]

TypeScript configuration: Add the following lines at the beginning of your component file.

/// <reference path ="../../node_modules/@types/jquery/index.d.ts"/>
declare var $: any 
ngOnInit() {
    $('#myModal').modal('show');
}

HTML: Include the modal code snippet below

<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <h4 class="modal-title" id="exampleModalLabel">Modal</h4>
      </div>
      <div class="modal-body">
        Modal content
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
      </div>
    </div>
  </div>
</div>

I've followed the above steps and it worked for me. Let me know if you encounter any errors.

Answer №2

    const $ = require('jquery');
        $('#exampleModal').fadeIn();
   $('#exampleModal').fadeOut();

Answer №3

I encountered a similar issue and was able to resolve it by following these steps:

npm install -D @types/bootstrap --save

Ensure that the following code is added in your app.module.ts:
import * as bootstrap from "bootstrap";
import * as $ from "jquery";

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