IDBFactory.cmp

The cmp() method of the IDBFactory interface compares two values as keys to determine equality and ordering for IndexedDB operations, such as storing and iterating.

Syntax

var result = indexedDB.cmp(first, second);

Parameters

first

The first key to compare.

second

The second key to compare.

Return value

An integer that indicates the result of the comparison; the table below lists the possible values and their meanings:

Exceptions

This method may raise a DOMException of the following types:

Example

var a = 1;
var b = 2;
var result = window.indexedDB.cmp(a, b);
console.log( "Comparison results: " + result );

Specifications

Browser compatibility

See also

• Using IndexedDB
• Starting transactions: IDBDatabase
• Using transactions: IDBTransaction
• Setting a range of keys: IDBKeyRange
• Retrieving and making changes to your data: IDBObjectStore
• Using cursors: IDBCursor
• Reference example: To-do Notifications (view example live.)