trindex | Trigram search library for Go | Database library

I have a form with three input fields named sl no ,stationerytype and stationeryqty There is a symbol + and - to append or delete these three field on click. I am trying the sl no field to generate Sl no automatically when i click the plus symbol and if I click - it will automatically adjust the sl no. but My sl no field remains blank .my code is

This is dynamic table pic: My problem is when I click the + button, Sno number should be incremented and then presented in the text box of the table. I have so far tried but I don't achieve any answer. Please help me to solve this problem and thanks

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I have a HTML form which in which there is a button which adds row. I want to generate a serial no in front of each row in SL No column. and how can I save this multiple row data along with the details at the top. I have tried it with FOR loop but I could not. I am new to this.

There's a JS variable, just like in the image. I'd like to get this from the controller, but I am getting following error

org.springframework.web.bind.MissingServletRequestParameterException: Requested List Parameter 'param' is not present?

I'm trying to get "hargaJual" value when I select some option. But when I insert a new row in the table and select a new option, it will change only the first row of "Harga" and leave the second-row blank.

Here's the result :

wanna to ask how to show the correct entries row (yellow background part) based on the record in table? For example, if i choose "Show 5 rows" per page, the result will be "Showing 1-5 out of {total entries}", and when i click on second page, it will be "Showing 6-10 out of {total entries}". Hope someone can teach me.

My problem is the calculations are working fine but when the row is removed the calculations are not updating according to that after creating a new row and after performing calculation only the values are updating..please help me to rectify this problem.

I am a beginner in jQuery. I am creating a form that will allow me to register the information of multiple names and linkers at the same time. After asking for a name, I also ask for the information of a 'linker' by using a select. If the Up linker is A, the Lw linker should be B and so on until Up Linker is G, when LW should be A. For this reason I need to limit to 7 the amount of rows people can add.

At this moment my code allows people to add as many rows as they like.I don't know how to limit the number of rows that can be added.

Another problem is that I can make The Lw linker value to change depending on the option selected on the Up linker, but it only works on the first row. When I add a second row, the value of the second Up linker changes the first Lw linker not the second. I also don't know how to fix that.

Ideally what I would love to have is a form that, by default, already have 4 rows waiting for the name to be registered with the following linkers (Since I recommend them to fill this four)

1. Up A - Lw B
2. Up C - Lw D
3. Up D - Lw E
4. Up G - Lw A

If people are not ready to register these 4 they can remove the ones they don't have and if they like to register others with the missing linkers they could press the add button and choose the linkers they need. They should be able to register up to 7 names but the linkers should be used only once.

Many thanks if you can help explaining what I am missing.

This is my code