While working on salesforce we come across the need of fetching user id. Here is the way to get user id in Apex, Lightning Component, LWC and Formula Field.

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Formula Fieldn

$User.Id

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Apexn

UserInfo.getUserId())

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Lightning Component n

var currentUserId = $A.get("$SObjectType.CurrentUser.Id");nConsole.log(currentUserId);

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Visualforce

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Visualforce Page
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UserId: {!$User.Id}
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User Email: {!$User.Email}
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Lightning Web Component

import USER_ID from '@salesforce/user/Id';nimport USER_NAME_FIELD from '@salesforce/schema/User.Name';nimport USER_EMAIL_FIELD from '@salesforce/schema/User.Email';n 

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