aura:if expression checks in Salesforce

aura:if expression checks in Salesforce

Apex Class:

public class AccountListController {
 
    @AuraEnabled
    public static List < Account > fetchAccts() {
        return [ SELECT Id, Name, Industry FROM Account LIMIT 10 ];
    }
    
}

Lightning Aura Component:

Aura Component:

<aura:component implements="force:appHostable"  controller="AccountListController">
    
    <aura:attribute type="Account[]" name="acctList"/>    
    <aura:attribute name="var1" type="String" default="test1"/>
    <aura:attribute name="var2" type="String" default="test2"/>
    
    <aura:handler name="init" value="{!this}" action="{!c.fetchAccounts}"/>
    
    <table class="slds-table slds-table_bordered slds-table_cell-buffer">
        <thead>
            <tr class="slds-text-title_caps">
                <th scope="col">
                    <div class="slds-truncate" title="Account Name">Account Name</div>
                </th>
                <th scope="col">
                    <div class="slds-truncate" title="Industry">Industry</div>
                </th>
            </tr>
        </thead>
        <tbody>
            <aura:iteration items="{!v.acctList}" var="a">
                <!-- Expression for iteration value -->
                <aura:if isTrue="{!a.Name != a.Industry}">
                    <tr>
                        <td data-label="Account Name">
                            <div class="slds-truncate" title="">{!a.Name}</div>
                        </td>
                        <td data-label="Industry">
                            <div class="slds-truncate" title="">{!a.Industry}</div>
                        </td>
                    </tr>
                </aura:if>
            </aura:iteration>
        </tbody>
    </table>
    <lightning:card>
        <!-- Expressions for variables -->
        <aura:if isTrue="{!v.var1 != v.var2}">
            Testing
        </aura:if>
        <aura:if isTrue="{!v.var1 == v.var2}">
            Testing 1
        </aura:if>
    </lightning:card>
</aura:component>

Aura JavaScript:

({
    fetchAccounts : function(component, event, helper) {
        var action = component.get("c.fetchAccts");
        action.setParams({
        });
        action.setCallback(this, function(response){
            var state = response.getState();
            if (state === "SUCCESS") {
                component.set("v.acctList", response.getReturnValue());
            }
        });
        $A.enqueueAction(action);
    }
})

Output:

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