Function

Available since v2.1.0

handler
Function
A function to handle warnings.

Allows for runtime registration of handler functions that override the default warning behavior. Warnings are invoked by calls made to @ember/debug/warn. The following example demonstrates its usage by registering a handler that does nothing overriding Ember's default warning behavior.

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import { registerWarnHandler } from '@ember/debug';

// next is not called, so no warnings get the default behavior
registerWarnHandler(() => {});

The handler function takes the following arguments:

  • message - The message received from the warn call.
  • options - An object passed in with the warn call containing additional information including:
    • id - An id of the warning in the form of package-name.specific-warning.
  • next - A function that calls into the previously registered handler.