Identify and mark JavaScript variables that are not being utilized

Currently utilizing JSHint and JSCS for JavaScript code validation, but neither of them can identify the presence of unused variables like in this example:

describe('XX', function () {

  var XXunused;
  beforeEach(inject(function ($injector) {
    XXunused = $injector.get('XXunused');
  }));

  // XXunused variable is not utilized elsewhere in this block.

});

Does anyone have a recommendation for a tool that can automatically detect these types of unused variables?

Answer №1

Have you heard of Esprima, an analytics tool? Check out these helpful resources:

https://gist.github.com/Benvie/4657032

If you're familiar with nodejs, you'll find it very easy to implement Esprima in your projects.

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Error: A property called 'node' is undefined and cannot be read

Currently attempting to complete the NPM installation process. I initiated with the following command: brew install node followed by curl -O https://www.npmjs.org/install.sh and then ~ % sh install.sh The resultant output is as follows: tar=/usr/bi ...

When using Jquery, input can be appended on the last child element when a key

I am new to JavaScript and want to enhance my page's functionality using jQuery. Here is my current HTML: <div class="input_fields_wrap"> <div><ul class="inputList"></ul></div> </div> My goal ...

Unable to trigger Daterangepicker on click event within Vue component

Just starting out with JS and Vue, facing a challenge here: Check out this Fiddle I'm not seeing the popup, however when I move $('.date-range-picker').daterangepicker(...) outside of the Vue instance, everything works fine and the picker ...

Having trouble uploading images on Wordpress?

There have been persistent errors in the admin area for several days now: An unexpected SyntaxError: expected expression, but received '<'. These errors are appearing in files moxie.min.js, plupload.min.js, wp-plupload.min.js As a result, w ...

"Table featuring rows that can be scrolled and a header that remains fixed in

I have implemented this code using this solution, but unfortunately, it doesn't seem to be working as expected. My requirements are : Scroll through the rows Keep the header fixed Ensure that the headers width matches the first TD row. Being new t ...

Soft keyboard on mobile fails to update when arrows are used in Ajax-populated dropdown menus

I am working on a web form that includes two select fields: Country and City: <select id="country" onchange="getCity(this);"> <option value="">-- Please select your country --</option> <option value="1">Austria& ...

What is the correct placement for the return next() statement within the Restify module in Node.js?

Consider the following code snippet that queries a user from a database and then checks for their phone number: module.exports = function (username, req, res, next) { var query = User.where('username', new RegExp('^' + username + ...

How do callback functions in Javascript interact with variables outside of their scope?

Greetings to all. I am facing an issue regarding the 'callback function - scope of variable', My intention is to utilize the 'i in for loop' with the 'callback function User_UidSearch', however, I am unable to implement it. ...

How to generate a pie chart using Highcharts

Here is the JSON data format that I am using to create a pie chart in highcharts: { "title": {"text": "Pie"}, "series": [ { "type": "pie", "name": "Actual", "data": [ [ "Salesgrowth" ...

Unable to save a string value from a function to MongoDB is unsuccessful

I've hit a roadblock. Working tirelessly to solve a persistent bug, but it feels like I'm getting nowhere. What am I missing? My goal is clear - once the user submits a form with the enctype of "multipart/form-data", I want to extract t ...

Error encountered when AJAX/ASP.NET Core MVC/DevExtreme POST back results in a faulty URL (Error/Error?code=22)

Incorporating Ajax into my MVC application allows me to initiate a POST request when the user clicks on the logout button. The goal is to redirect the user back to the Login page and route them to the HttpPost method in the controller. However, I encounter ...

Running a command line tool from a Node.js application: A step-by-step guide

My question pertains to running a command line tool from a node.js application, specifically one called tilemantle. In the documentation for tilemantle, it is suggested to install it globally and run it from the command line. However, I am interested in i ...

Looking for assistance with jqGrid

Is there a method to confirm if the grid has finished loading using a separate function? My goal is to automatically click on the first row and move that row to the second grid once this action occurs. jQuery("#search_grid").jqGrid('setGridParam&apo ...

Access the element generated by Bootstrap using JavaScript

When working with JS, I'm attempting to select an element created by Bootstrap, however, it consistently returns an undefined response. The element looks like this: <input class="form-control form-control-sm search-input" type="searc ...

Are there any implementations of RFC-6570 for URI templates using JavaScript?

When it comes to registering a controller in node and express, I typically use the following syntax: app.get('/user/:id', function (req, res) {...}); But now, I'm interested in doing it the rfc-6570 way: app.get('/user/{id}', func ...

The Radiobutton .val() function will always return a value, even if no radiobuttons have been selected

Within my form, I have 3 sets of radio buttons that are all properly labeled. When the user submits the form, I want to verify if they selected an option from each group. To achieve this, I have implemented the following method: $('.form').sub ...

Is NextJS on-demand revalidation compatible with Next/link?

https://nextjs.org/docs/basic-features/data-fetching/incremental-static-regeneration#on-demand-revalidation According to the NextJS documentation, it appears that on-demand cache revalidation should function properly with regular <a> tags and when t ...

Restricting JSON output using date and time values within the JSON object

Currently, I'm in the process of creating a play data reporting tool specifically designed for a radio station. The main concept involves retrieving play history from the playout software's API and manually adding tracks that were played outside ...

Create a customized multibar chart in Angular using NVD3 that displays only a line graph on the dual y-axis, visualizing

Currently, I am experimenting with developing an angular multibarchart that features only lines, with no bars. Instead of using Lee Byron's test data generator, I am keen on generating data using JSON. However, I am faced with the challenge of convert ...

Error message saying "AuglarFire Authentication failing due to unrecognized provider with routers"

Recently, I've been exploring the Firebase documentation on authentication with Routers. In my project, I'm using Ionic with ui-router, incorporating abstract views and actual views with controllers. Here's the structure I have set up: .sta ...