document.getElementById(“myId”) vs component.find(“myId”).getElement();





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What is better to use document.getElementById("myId") or component.find("myId").getElement(); in terms of performance? What will be faster?










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    What is better to use document.getElementById("myId") or component.find("myId").getElement(); in terms of performance? What will be faster?










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      up vote
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      favorite









      up vote
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      down vote

      favorite











      What is better to use document.getElementById("myId") or component.find("myId").getElement(); in terms of performance? What will be faster?










      share|improve this question













      What is better to use document.getElementById("myId") or component.find("myId").getElement(); in terms of performance? What will be faster?







      lightning-components lightning id aura-id






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      asked Nov 21 at 16:57









      yourbuddy

      534




      534






















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          Regardless of performance, you should use component.find. Document query selectors aren't recommended in lightning, whereas component.find has explicit support:




          Valid DOM Access



          The following methods are valid DOM access because the elements are created by c:domLocker.



          cmp.getElements()


          Returns the elements in the DOM rendered by the component.



          cmp.find()


          Returns the div and button components, identified by their aura:id attributes.



          cmp.find("div1").getElement()


          Returns the DOM element for the div as c:domLocker created the div.



          event.getSource().get("v.name")


          Returns the name of the button that dispatched the event; in this case, myButton.




          Notice the complete absence of query selectors in the enumeration of valid methods to access the DOM. It's not a supported approach, strictly speaking, even if it may work today.






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            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes








            up vote
            7
            down vote



            accepted










            Regardless of performance, you should use component.find. Document query selectors aren't recommended in lightning, whereas component.find has explicit support:




            Valid DOM Access



            The following methods are valid DOM access because the elements are created by c:domLocker.



            cmp.getElements()


            Returns the elements in the DOM rendered by the component.



            cmp.find()


            Returns the div and button components, identified by their aura:id attributes.



            cmp.find("div1").getElement()


            Returns the DOM element for the div as c:domLocker created the div.



            event.getSource().get("v.name")


            Returns the name of the button that dispatched the event; in this case, myButton.




            Notice the complete absence of query selectors in the enumeration of valid methods to access the DOM. It's not a supported approach, strictly speaking, even if it may work today.






            share|improve this answer

























              up vote
              7
              down vote



              accepted










              Regardless of performance, you should use component.find. Document query selectors aren't recommended in lightning, whereas component.find has explicit support:




              Valid DOM Access



              The following methods are valid DOM access because the elements are created by c:domLocker.



              cmp.getElements()


              Returns the elements in the DOM rendered by the component.



              cmp.find()


              Returns the div and button components, identified by their aura:id attributes.



              cmp.find("div1").getElement()


              Returns the DOM element for the div as c:domLocker created the div.



              event.getSource().get("v.name")


              Returns the name of the button that dispatched the event; in this case, myButton.




              Notice the complete absence of query selectors in the enumeration of valid methods to access the DOM. It's not a supported approach, strictly speaking, even if it may work today.






              share|improve this answer























                up vote
                7
                down vote



                accepted







                up vote
                7
                down vote



                accepted






                Regardless of performance, you should use component.find. Document query selectors aren't recommended in lightning, whereas component.find has explicit support:




                Valid DOM Access



                The following methods are valid DOM access because the elements are created by c:domLocker.



                cmp.getElements()


                Returns the elements in the DOM rendered by the component.



                cmp.find()


                Returns the div and button components, identified by their aura:id attributes.



                cmp.find("div1").getElement()


                Returns the DOM element for the div as c:domLocker created the div.



                event.getSource().get("v.name")


                Returns the name of the button that dispatched the event; in this case, myButton.




                Notice the complete absence of query selectors in the enumeration of valid methods to access the DOM. It's not a supported approach, strictly speaking, even if it may work today.






                share|improve this answer












                Regardless of performance, you should use component.find. Document query selectors aren't recommended in lightning, whereas component.find has explicit support:




                Valid DOM Access



                The following methods are valid DOM access because the elements are created by c:domLocker.



                cmp.getElements()


                Returns the elements in the DOM rendered by the component.



                cmp.find()


                Returns the div and button components, identified by their aura:id attributes.



                cmp.find("div1").getElement()


                Returns the DOM element for the div as c:domLocker created the div.



                event.getSource().get("v.name")


                Returns the name of the button that dispatched the event; in this case, myButton.




                Notice the complete absence of query selectors in the enumeration of valid methods to access the DOM. It's not a supported approach, strictly speaking, even if it may work today.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 21 at 17:02









                Adrian Larson

                103k19111233




                103k19111233






























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