aria-live polite/assertive/off Lookup

Classifies aria-live priorities: polite waits for an appropriate idle opportunity, assertive may interrupt, and off permits updates associated with focus. Actual assistive-technology announcements are not guaranteed.

Description

Aria-live expresses when assistive technology may announce region updates.

Aria-live expresses when assistive technology may announce region updates. Polite, assertive and off differ in announcement priority and focus dependency.^[1]

When to use aria-live polite/assertive/off Lookup

Use this for the following task: Classifies aria-live priorities: polite waits for an appropriate idle opportunity, assertive may interrupt, and off permits updates associated with focus. Actual assistive-technology announcements are not guaranteed.

Prepare the parsed attribute values, element states or ordered local lists requested below. Keep attribute presence separate from value.

How to use aria-live polite/assertive/off Lookup and understand its results

Prepare the parsed attribute values, element states or ordered local lists requested below. Keep attribute presence separate from value.
Enter value using the field table, then run the tool.
Read priority, mayInterrupt. Interpret flags, units, ordering and placeholder values using the rules below.
Review any reported issue or failed check, correct the supplied values when appropriate, and verify the result in its intended context.

Input field	Meaning	Value type and bounds	Requirement
value	Value	string; choose "off", "polite", "assertive"	Required

Select the supported exact token. Set mayInterrupt only for assertive and return focus-dependent priority for off.^[2]

off → focus-dependent; polite → polite; assertive → assertive and mayInterrupt

This summarizes the declared operation. Units, indexing, inclusivity and exceptional cases are explained in the surrounding text.

Output field	Meaning	Value type
priority	Priority	string
mayInterrupt	May Interrupt	boolean

json

{
  "input": {
    "value": "assertive"
  },
  "output": {
    "priority": "assertive",
    "mayInterrupt": true
  }
}

Limitations and assumptions

This does not guarantee actual announcements or evaluate atomicity, relevance, focus or assistive-technology settings.

This evaluates supplied local information; it does not fetch a page or run a browser. Malformed requests produce input errors. A successfully evaluated request can still contain false flags, empty result lists or a result outside the supplied threshold; those outcomes have the meanings stated above.

Alternative or Complementary methods

Choose ARIA State Attribute Pair Check for this operation: Checks a WAI-ARIA 1.2 state attribute name and a defined value token in recommended lowercase author spelling. This exact-spelling lexical pair check does not evaluate browser error recovery, role applicability or accessibility. For a complementary task, use Valid ARIA Role Names Lookup for this operation: Classifies individual WAI-ARIA 1.2 role names in their recommended lowercase author spelling as concrete, abstract or unknown. This exact-spelling vocabulary lookup excludes extensions and browser case-insensitive processing.

Further background: HTML / accessibility reference: aria-live polite/assertive/off Lookup.

References

HTML / accessibility reference: aria-live polite/assertive/off Lookup — W3C
aria-live polite/assertive/off Lookup — tool.io

Similar or alternative tools

ARIA State Attribute Pair Check
Checks a WAI-ARIA 1.2 state attribute name and a defined value token in recommended lowercase author spelling. This exact-spelling lexical pair check does not evaluate browser error recovery, role applicability or accessibility.
Valid ARIA Role Names Lookup
Classifies individual WAI-ARIA 1.2 role names in their recommended lowercase author spelling as concrete, abstract or unknown. This exact-spelling vocabulary lookup excludes extensions and browser case-insensitive processing.