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?

asked Nov 21 at 16:57

yourbuddy

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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?

asked Nov 21 at 16:57

yourbuddy

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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?

asked Nov 21 at 16:57

yourbuddy

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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?

lightning-components lightning id aura-id

asked Nov 21 at 16:57

yourbuddy

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asked Nov 21 at 16:57

yourbuddy

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asked Nov 21 at 16:57

yourbuddy

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asked Nov 21 at 16:57

yourbuddy

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asked Nov 21 at 16:57

yourbuddy

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.

answered Nov 21 at 17:02

Adrian Larson♦

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1 Answer
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active

oldest

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1 Answer
1

active

oldest

votes

up vote
7
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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.

answered Nov 21 at 17:02

Adrian Larson♦

103k19110233

add a comment |

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.

answered Nov 21 at 17:02

Adrian Larson♦

103k19110233

add a comment |

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.

answered Nov 21 at 17:02

Adrian Larson♦

103k19110233

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.

answered Nov 21 at 17:02

Adrian Larson♦

103k19110233

answered Nov 21 at 17:02

Adrian Larson♦

103k19110233

answered Nov 21 at 17:02

Adrian Larson♦

103k19110233

answered Nov 21 at 17:02

Adrian Larson♦

103k19110233

add a comment |

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