Magento 2 : Store value in a variable via knockout loop in html

Question

I am new to KO, in my html file I am printing a value like this -

<!-- ko foreach: { data: JSON.parse($parent.options), as: 'option' } -->
 <!-- ko if: option.label === 'AAA' || option.label === 'BBB' -->
 <dd class="values" data-bind="html: option.value"></dd>
 <!-- /ko --> 
<!-- /ko -->

And its working fine . But what I want is, I want assign all values of loop to a variable and want to print after loop. Like we do in php-

foreach($data as $key=> $index){
 if($key==0)
 $var = $index['value'];
 else
 $var .= ' '.$index['value']; 
}
echo $var

Want to do the same in KO's html file using above KO loop.

Please help me in this.

Thanks

Answer 1

You can use ifnot binding to accomplish this as follows ;

<!-- ko foreach: { data: JSON.parse($parent.options), as: 'option' } -->
 <!-- ko if: option.label === 'AAA' || option.label === 'BBB' -->
 <dd class="values" data-bind="html: option.value"></dd>
 <!-- /ko -->
 <!-- ko ifnot: option.label === 'AAA' || option.label === 'BBB' -->
 <dd class="values" data-bind="html: ' ' + option.value"></dd>
 <!-- /ko -->
<!-- /ko -->