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I am building a website with React. Currently I have created function that renders elements and does PUT fetch call to API I created in Node.js. Here is how it looks like:

See code below and log. I am working on a google sheets script that updates a google sheet when a linked google form is submitted. To do this I am using the array "event.namedValues", which is generated automatically when a form is submitted. However while debugging some issues (and learning how to do this), I wanted to check the length of the array I was working with and it would return "null". When I tried adding the .length property of the array to 0, the logger logged "NAN" (See log below). What am I doing wrong?

Code Sample:

I have spent whole day trying to figure this out. I want to update course recipes from my database (MongoDB) using my REST API call (Node.js with Express) by sumbiting input fields with new values of the recipe. I tried to show previous values by using input value="", but as I learned this makes it to be static. I tried to change it into dynamic accordingly to what I found online however none of tutorials I found would show what I am looking for. As you can see in code below I am trying to PUT new data that was previously set using setState(). Sadly I do not know how can I do it like this. Could you tell me if it is even possible and if so where can I learn to do it?

Here is code from React:

I am working on a project in which I need to post a new Course to my API. I tested this with POSTMAN and API works just fine, however when I try to post data using react fetch data is corrupted. While sending single strings like dishName: "pizza" works just fine and is shown in database I cannot manage to send an array of objects. I tried to do it in many ways like:

I know there is a lot wrong, I need someone to help me out and fix/explain this. I'm trying to make a food ordering app and I need to render an array of objects. ps. I'm new to ReactJS and this is my first job with it.

Here is the error code I get: [The screenshot is at the end of the page][1] I need to render these objects in a component so I could export it to my main app. I hope there is someone out there to help me out.

I am using Angular 6, am trying to add Bootstrap Multiselect in my project. But here am facing some issue bootstrap-multiselect.js not loading in page.

So am tying to add dynamically add this bootstrap-multiselect.js file, but it is not loading please help me on this

index.html

I have used the below code:

I have 3 search fields like this : enter image description here

I have combined 2 first fields when searching but I don't know how to combine the last one. Here is my code to combine 2 first fields:

I need help finishing this code. I cant figure out how to get a total dollar amount. Can anyone help with this? At the end I want it to have a detailed receipt with a total $amount. I can get it to print the receipt but I can figure out how to get a total. I just recently starting writing code so please do not judge me lol.