You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
24 lines
648 B
24 lines
648 B
4 years ago
|
/* global IDBKeyRange */
|
||
|
|
|
||
|
|
'use strict'
|
||
|
|
|
||
|
|
var ltgt = require('ltgt')
|
||
|
|
var NONE = {}
|
||
|
|
|
||
|
|
module.exports = function createKeyRange (options) {
|
||
|
|
var lower = ltgt.lowerBound(options, NONE)
|
||
|
|
var upper = ltgt.upperBound(options, NONE)
|
||
|
|
var lowerOpen = ltgt.lowerBoundExclusive(options, NONE)
|
||
|
|
var upperOpen = ltgt.upperBoundExclusive(options, NONE)
|
||
|
|
|
||
|
|
if (lower !== NONE && upper !== NONE) {
|
||
|
|
return IDBKeyRange.bound(lower, upper, lowerOpen, upperOpen)
|
||
|
|
} else if (lower !== NONE) {
|
||
|
|
return IDBKeyRange.lowerBound(lower, lowerOpen)
|
||
|
|
} else if (upper !== NONE) {
|
||
|
|
return IDBKeyRange.upperBound(upper, upperOpen)
|
||
|
|
} else {
|
||
|
|
return null
|
||
|
|
}
|
||
|
|
}
|