title: Can't resolve 'jquery' with typescript
body: <p>I have a problem to integrate typescript with jquery in my project. I install both @types/jquery and jquery using npm, but I can't use in my .ts.
  I try to import with:</p>
  
  <pre><code>import jquery from "jquery";
  import * as $ from "jquery";
  import jquery = require("jquery");
  const jquery = require("jquery");
  import jquery = require("@types/jquery");
  </code></pre>
  
  <p>These imports show error in compile time:</p>
  
  <pre><code>Module not found: Error: Can't resolve 'jquery'
  </code></pre>
  
  <p>My webpack config:</p>
  
  <pre><code>module.exports = {
    entry: './src/App.ts',
    plugins: [
      new CleanWebpackPlugin(['dist']),
      new HtmlWebpackPlugin({
        title: 'DQuiz'
      })
    ],
    module: {
      rules: [
        {
          test: /\.tsx?$/,
          use: 'ts-loader',
          exclude: /node_modules/
        },
        { test: /\.hbs$/, loader: "handlebars-loader" }
      ]
    },
    resolve: {
      mainFields: ['browserify'],
      extensions: ['.tsx', '.ts', '.js']
    },
    output: {
      filename: 'bundle.js',
      path: path.resolve(__dirname, 'dist')
    }
  };
  </code></pre>