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I've seen a lot about how the eval() function is evil; not a wise choice for HTML/JavaScript programming. I would like to use a function where I can pass in a string to have it read as a variable name, and eval() seems to do just that, but I don't want to use a destructive function.

From what I understand, the issue with eval() is that it can read third-party input as actual code, which opens a door for malicious activity. I have a map element that keeps track of location using strings for the location names. I also have large blocks of text assigned to variables so I can pull up a description of the current location easily. This seems like an acceptable time to use eval, as the strings that I would be passing in would be provided by other parts of the code. Is this a fair judgement, or is there some other function that I should be using?

Im learning JS. Found a good video "JavaScript Programming - Full Course" and stucked at the 2nd part where I need to use DOM. I have the HTML document, in i refered to the JS file. Other stuff working well, but this:

let messageEL = document.getElementById("message-el")

Always get this error:

ReferenceError: document is not defined

I installed live server, and it works one time, than stops.

What can I do, to fix this? Do I need to download some extension? Please tell me the solution as simple as u can Im at the beginning of the learning path.

This is the code and the error

I am still learning some basics of javascript programming (and programming in general).

In my Angular Firebase project, I get the following typescript error (or rather proposed change in visual studio code, i.e. the lightbulb icon):

Convert overload list to single signature

It is referring to the following code:

Just finished going through Head Start JavaScript Programming, figured I'd take a swing at building a "to-do" app from scratch. I've managed to get the following code to perform "correctly", but it is obviously super repetitive. My intention is to have text from an input field and dropdown to be logged together in a "to-do" list. Input field being the task and the dropdown providing a category/priority level. All suggestions/corrections would be deeply appreciated.

I am new with JavaScript programming. I am making a program for deaf and blind children community. It is text to display Letters program. It split text and show image on screen.

HTML and JavaScript base program. Input sentence taken from user. JavaScript split it and send relevant image name to HTML for display.

It shows all images at once without delay. When I use alert() it shows all images are being displayed. 3rd day going on I tried to implement delay timebase substraction or settimeout but not working. Perhaps I am doing something wrong. I need community help to fix this.

As a personal project, I am trying to learn some basic javascript programming by implementing an online version of the card game "Great Dalmuti".

Right now, I'm trying to implement some basic elements from the game using TDD. You can see the current state of my code at: https://github.com/spierepf/great-dalmuti

The issue that I am having is with the statement:

This is the code of the main page like in the screenshot. Using mysql to get that data, it is a CRUD application with nodejs, express, mysql and bootstrap. Don't know how to format the date to (month/day/year) instead of (Sun May 04 1980 00:00:00 GMT+0500 (Pakistan Standard Time)). Please help. New to javascript programming, so i am struggling :(

I'm coming over from PHP, Ruby and JavaScript programming and I'm really finding my self at loss with C language, and in particular, regarding manipulating strings.

Getting to the bottom of it, I want to get an input from the user and store a text file with that name; However, everything happens but that. To be exact, as far as I could figure it out on my own, it is the terminating null that translates into � character.

Here is a standalone bug example:

I am fairly new to JavaScript programming and FabricJS (I've only been learning both of them for about a month now) so please bear with me.

I am trying to use FabricJS to create a user interface which should basically function as described below:

1. User creates a new circle object
2. User selects the created circle object
3. User is able to modify the selected object using the bounding box (as per usual)
4. Upon selecting the circle object, a sidebar positioned next to the canvas is updated dynamically with the parameters of the selected object (in this case the X (left), Y (top) and radius parameters). To do this, the user would need to enter the new desired values in the input boxes on the right hand side and click on the "Update" button afterwards.

This is handled by a switch case as such: