How to Get the label of the control using Javascript?

// JavaScript/JScript in CRM 2011 | CRM 2011 Training Series

// How to Get the label of the control using Javascript?

    Xrm.Page.ui.controls.get(‘<Attribute Name>’).getLabel()

    // Get record id

    Xrm.Page.data.entity.getId()

    // set field as required based value of a check box field.

    function OnChangeBoolField()

    {

    var varBool = Xrm.Page.data.entity.attributes.get(“<Boolean Field Name>”).getValue();

    if(varBool == false)

    {

     Xrm.Page.getAttribute(“<Attribute Name>”).setRequiredLevel(“required”);

    }

    else

    {

     Xrm.Page.getAttribute(“<Attribute Name>”).setRequiredLevel(“none”);

    }

    }

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