How to know if a value is empty

Question

If I pass an empty array to jade, how can I know if it is empty?

JavaScript:

var data = [];

Jade:

if(data) 
   table ...
else 
   table ...

+3

node.js pug

Alvin 09 jan. At 4:04 am

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2 answers

you can use javascript to check the length of the array.

if (data.length==0){
  // do something array is empty
}

here is the related answer from fooobar.com/questions/77088 / ...

+4

Naeem shaikh 09 jan. At 4:10 am

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alexpods · Accepted Answer · 2015-01-09T04:09:24+0000

Use property length

:

if (data.length)
    table ...
else
    table ...