I want to show in the UI dynamically the current page label...

so i try something like this in Component section: i want to show the v.pages[currentPage].Label__c value... But i get message on save expecting a positive integer, found '+' at column 9 of expression: v.Pages[+"!v.currentPage"+].Label__c: Source

Code snippet below...

<aura:attribute name="pages" type="Page__c[]" />
<aura:attribute name="currentPage" type="Integer" />
    <span class="slds-page-header__title slds-truncate" title="{!v.currentPage}"> 

Any ideas ?

1 Answer 1


You can not access the array index dynamically in HTML.

As an alternative, you can set the current page label in js


    <aura:attribute name="pages" type="Page__c[]" />
    <aura:attribute name="currentPage" type="Integer" default="0" />
    <aura:attribute name="currentPageLabel" type="String" />

    <aura:handler name="change" value="{!v.currentPage}" action={!c.setLabel}" />



setLabel: function(component) {
    const pages= component.get('v.pages');
    const currentPage= component.get('v.currentPage');

    component.set('v.currentPageLabel', pages[currentPage].Label__c);

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