Hello Everyone,
I have a component , which creates lightning:button dynamically in iteration. Could i get all the buttons created in the js controller by some logic?
I just want to disable one button out of the 25 dynamically created button.

Cmp:
 

aura:component implements="flexipage:availableForAllPageTypes,force:appHostable" controller="LightningBingoBoardCreatedAuraClass">
<aura:attribute name="BoardClass" type="LightningArrayWraperClass[]">    </aura:attribute>

    <aura:attribute name="chosenValues" type="String[]">    </aura:attribute>

   <aura:iteration items="{!v.BoardClass}" var="item">
        <lightning:layout horizontalAlign="space">

                   <aura:iteration items="{!item.arrayClass}" var="inneritem">
                    
                       
       <lightning:layoutItem flexibility="auto" padding="around-small">
       <div aura:id="{!inneritem.value}">
           <lightning:button variant="neutral" label="{!inneritem.value}" onclick="{! c.buttonClickEventFire }" />
                       </div>
       </lightning:layoutItem>
                       
       </aura:iteration> 
       </lightning:layout>
 <lightning:button variant="neutral" label="clear all" onclick="{!c.buttonClear}"/>

Basically there are 25 buttons with unique labels to it. I just want to disable the button based on the value entered in a text box which matches the button label. I just want to know how to get all the buttons present inside the component from js controller code
 

buttonClear:function(component,event,helper)
    {
                var button = component.find({ instancesOf : "ui:button" });
    button.set("v.label", "test");
        alert(button);
     var com=component.get("v.LightningArrayWraperClass.BoardClass");
   
}
/*   var button = component.find({ instancesOf : "ui:button" }); this code didnt work ,the button was always null

Any help is greatly welcomed.

Thanks and Regards,
Shiva RV