Can I use conditional statements with EJS templates in JMVC

Question

and if yes  what is the syntax  My goal is to prepend an  s  to the word  comment  when there is more than one  in an jQuery ejs template in a JMVC app  The following breaks  I can t find any docs for conditionals      lt   commentsNumber  gt  comment lt   if  commentsNumber  gt  1      gt  s  lt       gt

User · Answer

Conditionals work if they re structured correctly  I ran into this issue and figured it out   For conditionals  the tag before else has to be paired with the end tag of the previous if otherwise the statements will evaluate separately and produce an error    ERROR    lt   if true     gt      lt h1 gt foo lt  h1 gt   lt       gt   lt   else    gt      lt h1 gt bar lt  h1 gt    lt       gt    Correct   lt   if true     gt      lt h1 gt foo lt  h1 gt    lt     else    gt        lt h1 gt bar lt  h1 gt   lt       gt    hope this helped

User · Answer

I know this is a little late answer   you can use if and else statements in ejs as follows   lt   if  something      gt        Then do some operation  lt     else     gt        Then do some operation  lt       gt    But there is another thing I want to emphasize is that if you use the code this way    lt   if  something      gt        Then do some operation  lt       gt   lt   else     gt        Then do some operation  lt       gt    It will produce an error   Hope this will help to someone

User · Answer

For others that stumble on this  you can also use ejs params props in conditional statements   recipes js File   app get   recipes   function req  res        res render  recipes ejs             recipes  recipes               recipes ejs File    lt  if  recipes length  gt  0      gt     Do something with more than 1 recipe  lt       gt

User · Answer

You can also use else if syntax    lt   if  x     1      gt       lt p gt Hello world  lt  p gt   lt     else if  x     2      gt       lt p gt Hi earth  lt  p gt   lt     else     gt       lt p gt Hey terra  lt  p gt   lt       gt

User · Answer

EJS seems to behave differently depending on whether you use     notation or not   I have checked and the following condition is evaluated as you would expect    lt  if  3  3     gt   TEXT PRINTED   lt     gt   lt  if  3  4     gt   TEXT NOT PRINTED   lt     gt    while this one doesn t    lt  if  3  3    gt   TEXT PRINTED   lt     gt   lt  if  3  4    gt   TEXT PRINTED   lt     gt

User · Answer

Yes   You can use conditional statement with EJS like if else   ternary operator or even switch case also  For Example  Ternary operator     lt  - role     Admin     Super Admin    role     subAdmin     Sub Admin    role   gt   Switch Case   lt   switch  role    case  Admin      gt          Super Admin          lt   break   case  eventAdmin      gt          Event Admin          lt   break   case  subAdmin      gt          Sub Admin          lt   break       gt

User · Answer

Just making code shorter you can use ES6 features  The same things can be written as app get  quot  recipes quot    req  res    gt        res render  quot recipes ejs quot             recipes               And the Templeate can be render as the same   lt  if  recipes length  gt  0      gt     Do something with more than 1 recipe  lt       gt

[conditional-statements] Can I use conditional statements with EJS templates (in JMVC)?

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