Encountering an issue with the vue webpack-simple template: Uncaught TypeError - the intermediate value is not recognized as a function

Question

Encountering an issue with the vue webpack-simple template: Uncaught TypeError - the intermediate value is not recognized as a function

Encountering a peculiar error while trying to create an IIFE method in the main.js file. Follow these steps to reproduce the issue, open the command prompt

vue init webpack-simple test
cd test
npm install test
npm run dev

Open the main.js file and insert the following method at the end

(function test() {
  console.log('test');
})();

This will result in the following error being displayed on the console

Uncaught TypeError: (intermediate value) is not a function
    at eval (eval at <anonymous> (build.js:978), <anonymous>:13:3)
    at Object.<anonymous> (build.js:978)
    at __webpack_require__ (build.js:660)
    at fn (build.js:84)
    at Object.<anonymous> (build.js:1378)
    at __webpack_require__ (build.js:660)
    at build.js:709
    at build.js:712

If I change the test to a regular function and call it like test(), then no error is thrown. Why does this issue arise specifically when using an IIFE?

javascript webpack vue.js

Answer 1

Answer №1

The main issue here lies in the absence of semicolons in the Vue template. Let's take a look at the code snippet provided:

new Vue({
  el: '#app',
  render: h => h(App)
})

(function test() {
  console.log('test');
})();

Due to JavaScript's flexible handling of whitespace, what actually exists is this structure:

new Vue({
  el: '#app',
  render: h => h(App)
})(function test() {
  console.log('test');
})();

If we break it down further, we get something like this:

const vue = new Vue({
  el: '#app',
  render: h => h(App)
})

vue(function test() {
  console.log('test');
})();

The consequence of this arrangement is an error message that reads as follows:

Uncaught TypeError: vue is not a function

This error reiterates the initial problem but with a named variable vue instead of an anonymous one.

It is crucial to be mindful of such scenarios when omitting semicolons in your code.

Answer 2

The main issue here lies in the absence of semicolons in the Vue template. Let's take a look at the code snippet provided:

new Vue({
  el: '#app',
  render: h => h(App)
})

(function test() {
  console.log('test');
})();

Due to JavaScript's flexible handling of whitespace, what actually exists is this structure:

new Vue({
  el: '#app',
  render: h => h(App)
})(function test() {
  console.log('test');
})();

If we break it down further, we get something like this:

const vue = new Vue({
  el: '#app',
  render: h => h(App)
})

vue(function test() {
  console.log('test');
})();

The consequence of this arrangement is an error message that reads as follows:

Uncaught TypeError: vue is not a function

This error reiterates the initial problem but with a named variable vue instead of an anonymous one.

It is crucial to be mindful of such scenarios when omitting semicolons in your code.

Encountering an issue with the vue webpack-simple template: Uncaught TypeError - the intermediate value is not recognized as a function

Answer №1

Similar questions

Azure Chatbot that logs conversations in Webchat whenever the user selects 'none of the above' option

Exploring the possibility of designing custom pageload tooltips inspired by jQuery validationEngine's visual style and interface

A different approach to fixing the error "Uncaught (in promise) TypeError: fs.writeFile is not a function" in TensorFlow.js when running on Chrome

"Make your slides smooth and responsive with the unslick option in slick

What could be the reason for the malfunction of this AngularJS data binding feature?

Mapping JSON data from an array with multiple properties

Unable to successfully link filter outcomes with input in AngularJS

What is the best way to send a 102 Processing status code in Express?

Issue with IE due to jQuery/JavaScript conflict

Access Denied: Origin Issue with OAuth2

Running a Node.js script on an Express.js server using an HTML button

Mapping an array of objects using dynamically generated column names

The reducer and the store are experiencing a lack of synchronization

How to center items within a Toolbar using React's material-ui

Is there a way to exclusively use ES6 to import jQuery from an npm package?

What ways can I leverage JavaScript to convert a provided array into multiple different arrays?

How can I utilize jQuery to add tags in a box?

Explain what mongoose and Schema are at the beginning, just once

Struggling to access component variables within the setTimeout function

The development mode of NextJS is experiencing issues, however, the build and start commands are functioning normally