Difference between {{ }} and ]

Summary

Difference between {{ }} and [[ ]] while calling variables

Content

Hi,

I have had a bit of confusions with variables defined based on two different syntaxes in different sections of the code. Whats the difference between using {{ }} and using [[ ]] while calling or including variables in code.

Use case {{ }} - Implementing filter criterion in get leads api

{

"op": "$sw",

"attribute": "Name",

"value": "{{ $page.variables.filterText }}"

}

 

Use case [[  ]] - Standard template 21b

           <oj-list-view id="odcs-home-visual-navigator"

              class="oj-listview-card-layout odcs-visual-navigator oj-full-width oj-flex-item oj-sm-12 odcs-home-visual-navigator"

              selection-mode="single" :aria-label="[[ $application.translations.app.homepage_visualNavigator_title ]]"

              data="[[ $variables.navigatorDataProviderCustom ]]"

              on-first-selected-item-changed="[[$listeners.odcsHomeVisualNavigatorFirstSelectedItem]]">

 

The example itself is not of relevance. I just wanted to know why we are using {{}} in some spots and [[]] in the others. When should we use one or the other?