CODEWITHSUNDEEP
javascriptreactjs
uberrebu
uberrebu

Reputation: 4349

How To Setup Multiple Conditionals Within React JSX?

I am trying to do something similar to if elseif else statement in React.

Here is what I have currently, with just simple true or false conditional, and works fine

{isAdmin()  ? (
  <>
    <a href="/profile">admin</a>  
    <div class='container'></div>
  </>         
) : (
  <>
    <a href="/profile">user</a>
    <div class='container'></div>
  </>
)}

but now I want to have multiple conditionals. Tried this below

isAdminTwo() and isAdminThree() are children of isAdmin(), which means that they all must meet isAdmin() condition first

{isAdmin()  ? (
  <>
  <a href="/profile">admin</a>  
  <div class='container'></div>
  </>         
) : (
  <>
  {isAdminTwo()  ? (
  <>
    <a href="/profile">admin2</a>  
    <div class='container'></div>
  </>         
) : (
  <>
  {isAdminThree()  ? (
  <>
    <a href="/profile">admin3</a>  
    <div class='container'></div>
  </>         
) : (
  <>
    <a href="/profile">user</a>
    <div class='container'></div>
  </>
)}

but getting errors

TypeError: ge(...) is not a function

What is a proper way to do this?

Upvotes: 0

Views: 74

Answers (1)

deaponn
deaponn

Reputation: 858

To start off, you should not be doing that. Rather go for a syntax like

    if (isAdmin())
        return (
            <>
                <a href="/profile">admin</a>
                <div class="container"></div>
            </>
        );
    if (isAdmin() && isAdminTwo())
        return (
            <>
                <a href="/profile">admin2</a>
                <div class="container"></div>
            </>
        );
    if (isAdmin() && isAdminThree())
        return (
            <>
                <a href="/profile">admin3</a>
                <div class="container"></div>
            </>
        );
    return (
        <>
            <a href="/profile">user</a>
            <div class="container"></div>
        </>
    );

Or if you want to use it within other component that is always the same:

    let contents = (
        <>
            <a href="/profile">user</a>
            <div class="container"></div>
        </>
    );
    if (isAdmin())
        contents = (
            <>
                <a href="/profile">admin</a>
                <div class="container"></div>
            </>
        );
    if (isAdmin() && isAdminTwo())
        contents = (
            <>
                <a href="/profile">admin2</a>
                <div class="container"></div>
            </>
        );
    if (isAdmin() && isAdminThree())
        contents = (
            <>
                <a href="/profile">admin3</a>
                <div class="container"></div>
            </>
        );

    return <SameWrapper>{contents}</SameWrapper>;

But if you wanted to do it with ternary operators (which would be most probably not readable for other people and you in the future), kepp in mind correct syntax of ternary operator:

truthCheck ? ifTrue : ifFalse

So your example should go along the way

    isAdmin() ? (
        isAdminTwo() ? (
            <>
                <a href="/profile">admin2</a>
                <div class="container"></div>
            </>
        ) : isAdminThree() ? (
            <>
                <a href="/profile">admin3</a>
                <div class="container"></div>
            </>
        ) : (
            <>
                <a href="/profile">admin</a>
                <div class="container"></div>
            </>
        )
    ) : (
        <>
            <a href="/profile">user</a>
            <div class="container"></div>
        </>
    );

Where your truthCheck is there, and if true display a component, but if false perform next check. In your code these fragments are causing bugs:

<> // <--- these are not needed
{isAdminTwo()  ? (
<> // <--- these are not needed
// same for below

Upvotes: 3

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