Antd - Multiple select boxes remove items already selected - javascript

I have multiple antd select boxes rendered in a list. Options are populated via an array variable. If I have a value chosen in one select box I don't want to render it as an option in other select boxes. Do I just have to store a list for each select box for options or is there a simpler solution?

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AngularJS. When changing the selected item in one combobox, how to clear the selected item in another combobox?

I have two combobox.
They are connected to each other. When an element is selected from the first combobox, the other combobox receives the corresponding data.
But when I select another item from the first combobox, the second combobox still shows the selected item from the generated data on the first select. The question is how to make it so that when an element is selected from the first combobox, the second one becomes clear and shows the standard writing?

Multiple dependent select boxes

I have 12 select boxes all filled up with their own specific array elements (also 12 arrays in total) and all of them are dependent on each other. I managed to make them all dependent on first select box, which means if I select an element in first select box, the rest of the information related to the first select box will be displayed on other select boxes. My problem is that I don't know how to filter the select boxes when I randomly select a value from a random select box.
Ex: I select a random value from one of the select boxes, now the other select boxes should be filled with the elements that are related to the first randomly selected value.

Material UI Autocomplete Multiple - remove already selected tag from options list

When using the Material UI Autocomplete for multiple values, the already selected input also gets displayed in the options list in blue background color.
How can I set autocomplete to not show the already selected values in the options list ?
The autocomplete component provides the filterSelectedOptions prop, which can be used to hide the selected option(s) from the list of options.
The second autocomplete in this sandbox created by MUI team, has that prop enabled.

ng-select multiple checkbox selection

When there are multiple checkbox options inside dropdown I don't want them to apply on each selection.
I would like to do like this : After checking few options, user has to click the apply button inside the dropdown then the options will get selected. If user doesn't click apply his selection will get reset.
Also I would like to show the selected option like this, instead of showing all the options inside the dropdown. If there is more than one option selected user will se (+1 other) or anything other text
The versions I'm using:
Angular Version: 7.3.7,
Ng-select Version:2.20
Can anyone help?

React Semantic Ui dropdown set dynamically

I am using react-semantic-ui
Here is the scenario:
I have two (2) dropdowns with placeholders, I am setting the 2nd Dropdown's option dynamically when I choose from the 1st dropdown. Then I would choose an item from the 2nd dropdown.
Then, If I changed the value of the 1st dropdown, it should change the values of the 2nd dropdown again, I have no problems with that but I want to set the placeholder back again
Summary: First I chose an item from the 1st dropdown, that sets the options of the 2nd dropdown. Then I choose an item from the 2nd dropdown, then I choose AGAIN from the 1st dropdown and that resets the options of the 2nd dropdown but that placeholder is not showing anymore.

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