CODEWITHSUNDEEP
javascripttemplatesdust.js
user2062455
user2062455

Reputation: 421

dust.js if statement with size and eq as condition

Anyone know ihow i can use an @size and a @eq together an @if condition?

{@size key=items /}

i want to say something to that effect:

{@if cond={@size key=items /} of {@eq key=items value= B } = 10} ...do this {:else} do that

which means look through my data, count how many items:B there are, if there are more than 1 do this or if it is 0 do that

Upvotes: 1

Views: 1713

Answers (2)

rragan
rragan

Reputation: 484

The @provide helper will let you do that and many other things. See https://npmjs.org/package/dustmotes-provide.

{@provide}
    {@if cond="numItems === 0"}
        No items
    {/if}
{:numItems}
   {@size key=items /}
{/provide}

Your actual testing logic in the block after the @provide depends on what you want to test for but it would have the value numItems now available to directly reference. That value is computed in the {:numItems} block.

Upvotes: 2

prashn64
prashn64

Reputation: 657

Not possible at the moment, you would have to make your own custom helper for it. There is an effort to be able to add helper output to the context so you can reference it like any other dust variable:

https://github.com/linkedin/dustjs-helpers/pull/57

Upvotes: 0

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