Ternary operator in the render method












-1















I'm trying to show a message if the user is not logged in.
Please Login here to continue.



In my render method, I need to check to see if the user is already logged in to not show any message.

I also have a login method that directs user to the login page. (



{
this.props.isAuthed
? <div> </div>
: <div> Please login<Button color="inherit" onClick={this.login}>here</Button></div>
}


I have two problems. One is the above if statement doesn't work because it's not an if else statement. (The only solution I found is adding an empty <div>)



The other issue is I need to show a button to look like a hyperlinked text because I can't call the this.login function in a href. Now there's a big space (because of the button) between "login" and "here". I also need to make "here" red to inform the user that it's clickable.










share|improve this question




















  • 2





    The ? part can be just "" no?

    – Pointy
    Nov 20 '18 at 17:33











  • yes but it's not different from the empty div that I mentioned.

    – Hanna
    Nov 20 '18 at 17:35






  • 2





    Hanna, please ask a second question for the second problem you have. These are two totally unrelated issues.

    – Daniel Hilgarth
    Nov 20 '18 at 17:35











  • I can't call the this.login function in a href - why is that?

    – Bhojendra Rauniyar
    Nov 20 '18 at 17:37






  • 1





    why not? <a onClick={}>??

    – Bhojendra Rauniyar
    Nov 20 '18 at 17:41
















-1















I'm trying to show a message if the user is not logged in.
Please Login here to continue.



In my render method, I need to check to see if the user is already logged in to not show any message.

I also have a login method that directs user to the login page. (



{
this.props.isAuthed
? <div> </div>
: <div> Please login<Button color="inherit" onClick={this.login}>here</Button></div>
}


I have two problems. One is the above if statement doesn't work because it's not an if else statement. (The only solution I found is adding an empty <div>)



The other issue is I need to show a button to look like a hyperlinked text because I can't call the this.login function in a href. Now there's a big space (because of the button) between "login" and "here". I also need to make "here" red to inform the user that it's clickable.










share|improve this question




















  • 2





    The ? part can be just "" no?

    – Pointy
    Nov 20 '18 at 17:33











  • yes but it's not different from the empty div that I mentioned.

    – Hanna
    Nov 20 '18 at 17:35






  • 2





    Hanna, please ask a second question for the second problem you have. These are two totally unrelated issues.

    – Daniel Hilgarth
    Nov 20 '18 at 17:35











  • I can't call the this.login function in a href - why is that?

    – Bhojendra Rauniyar
    Nov 20 '18 at 17:37






  • 1





    why not? <a onClick={}>??

    – Bhojendra Rauniyar
    Nov 20 '18 at 17:41














-1












-1








-1








I'm trying to show a message if the user is not logged in.
Please Login here to continue.



In my render method, I need to check to see if the user is already logged in to not show any message.

I also have a login method that directs user to the login page. (



{
this.props.isAuthed
? <div> </div>
: <div> Please login<Button color="inherit" onClick={this.login}>here</Button></div>
}


I have two problems. One is the above if statement doesn't work because it's not an if else statement. (The only solution I found is adding an empty <div>)



The other issue is I need to show a button to look like a hyperlinked text because I can't call the this.login function in a href. Now there's a big space (because of the button) between "login" and "here". I also need to make "here" red to inform the user that it's clickable.










share|improve this question
















I'm trying to show a message if the user is not logged in.
Please Login here to continue.



In my render method, I need to check to see if the user is already logged in to not show any message.

I also have a login method that directs user to the login page. (



{
this.props.isAuthed
? <div> </div>
: <div> Please login<Button color="inherit" onClick={this.login}>here</Button></div>
}


I have two problems. One is the above if statement doesn't work because it's not an if else statement. (The only solution I found is adding an empty <div>)



The other issue is I need to show a button to look like a hyperlinked text because I can't call the this.login function in a href. Now there's a big space (because of the button) between "login" and "here". I also need to make "here" red to inform the user that it's clickable.







javascript reactjs






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share|improve this question













share|improve this question




share|improve this question








edited Nov 20 '18 at 18:07









varit05

1,640716




1,640716










asked Nov 20 '18 at 17:33









HannaHanna

273417




273417








  • 2





    The ? part can be just "" no?

    – Pointy
    Nov 20 '18 at 17:33











  • yes but it's not different from the empty div that I mentioned.

    – Hanna
    Nov 20 '18 at 17:35






  • 2





    Hanna, please ask a second question for the second problem you have. These are two totally unrelated issues.

    – Daniel Hilgarth
    Nov 20 '18 at 17:35











  • I can't call the this.login function in a href - why is that?

    – Bhojendra Rauniyar
    Nov 20 '18 at 17:37






  • 1





    why not? <a onClick={}>??

    – Bhojendra Rauniyar
    Nov 20 '18 at 17:41














  • 2





    The ? part can be just "" no?

    – Pointy
    Nov 20 '18 at 17:33











  • yes but it's not different from the empty div that I mentioned.

    – Hanna
    Nov 20 '18 at 17:35






  • 2





    Hanna, please ask a second question for the second problem you have. These are two totally unrelated issues.

    – Daniel Hilgarth
    Nov 20 '18 at 17:35











  • I can't call the this.login function in a href - why is that?

    – Bhojendra Rauniyar
    Nov 20 '18 at 17:37






  • 1





    why not? <a onClick={}>??

    – Bhojendra Rauniyar
    Nov 20 '18 at 17:41








2




2





The ? part can be just "" no?

– Pointy
Nov 20 '18 at 17:33





The ? part can be just "" no?

– Pointy
Nov 20 '18 at 17:33













yes but it's not different from the empty div that I mentioned.

– Hanna
Nov 20 '18 at 17:35





yes but it's not different from the empty div that I mentioned.

– Hanna
Nov 20 '18 at 17:35




2




2





Hanna, please ask a second question for the second problem you have. These are two totally unrelated issues.

– Daniel Hilgarth
Nov 20 '18 at 17:35





Hanna, please ask a second question for the second problem you have. These are two totally unrelated issues.

– Daniel Hilgarth
Nov 20 '18 at 17:35













I can't call the this.login function in a href - why is that?

– Bhojendra Rauniyar
Nov 20 '18 at 17:37





I can't call the this.login function in a href - why is that?

– Bhojendra Rauniyar
Nov 20 '18 at 17:37




1




1





why not? <a onClick={}>??

– Bhojendra Rauniyar
Nov 20 '18 at 17:41





why not? <a onClick={}>??

– Bhojendra Rauniyar
Nov 20 '18 at 17:41












1 Answer
1






active

oldest

votes


















2














Use a simple boolean expression:



 {!this.props.isAuthed &&
<div> Please login<Button color="inherit" onClick={this.login}>here</Button></div>
}





share|improve this answer
























  • thanks! do you have any solution for the second problem?

    – Hanna
    Nov 20 '18 at 17:37











  • Here you go: stackoverflow.com/a/53398926/572644

    – Daniel Hilgarth
    Nov 20 '18 at 18:07











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









2














Use a simple boolean expression:



 {!this.props.isAuthed &&
<div> Please login<Button color="inherit" onClick={this.login}>here</Button></div>
}





share|improve this answer
























  • thanks! do you have any solution for the second problem?

    – Hanna
    Nov 20 '18 at 17:37











  • Here you go: stackoverflow.com/a/53398926/572644

    – Daniel Hilgarth
    Nov 20 '18 at 18:07
















2














Use a simple boolean expression:



 {!this.props.isAuthed &&
<div> Please login<Button color="inherit" onClick={this.login}>here</Button></div>
}





share|improve this answer
























  • thanks! do you have any solution for the second problem?

    – Hanna
    Nov 20 '18 at 17:37











  • Here you go: stackoverflow.com/a/53398926/572644

    – Daniel Hilgarth
    Nov 20 '18 at 18:07














2












2








2







Use a simple boolean expression:



 {!this.props.isAuthed &&
<div> Please login<Button color="inherit" onClick={this.login}>here</Button></div>
}





share|improve this answer













Use a simple boolean expression:



 {!this.props.isAuthed &&
<div> Please login<Button color="inherit" onClick={this.login}>here</Button></div>
}






share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 20 '18 at 17:34









Daniel HilgarthDaniel Hilgarth

139k32247358




139k32247358













  • thanks! do you have any solution for the second problem?

    – Hanna
    Nov 20 '18 at 17:37











  • Here you go: stackoverflow.com/a/53398926/572644

    – Daniel Hilgarth
    Nov 20 '18 at 18:07



















  • thanks! do you have any solution for the second problem?

    – Hanna
    Nov 20 '18 at 17:37











  • Here you go: stackoverflow.com/a/53398926/572644

    – Daniel Hilgarth
    Nov 20 '18 at 18:07

















thanks! do you have any solution for the second problem?

– Hanna
Nov 20 '18 at 17:37





thanks! do you have any solution for the second problem?

– Hanna
Nov 20 '18 at 17:37













Here you go: stackoverflow.com/a/53398926/572644

– Daniel Hilgarth
Nov 20 '18 at 18:07





Here you go: stackoverflow.com/a/53398926/572644

– Daniel Hilgarth
Nov 20 '18 at 18:07




















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