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23 lines
648 B
JavaScript
23 lines
648 B
JavaScript
/* global IDBKeyRange */
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'use strict'
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var ltgt = require('ltgt')
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var NONE = {}
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module.exports = function createKeyRange (options) {
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var lower = ltgt.lowerBound(options, NONE)
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var upper = ltgt.upperBound(options, NONE)
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var lowerOpen = ltgt.lowerBoundExclusive(options, NONE)
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var upperOpen = ltgt.upperBoundExclusive(options, NONE)
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if (lower !== NONE && upper !== NONE) {
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return IDBKeyRange.bound(lower, upper, lowerOpen, upperOpen)
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} else if (lower !== NONE) {
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return IDBKeyRange.lowerBound(lower, lowerOpen)
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} else if (upper !== NONE) {
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return IDBKeyRange.upperBound(upper, upperOpen)
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} else {
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return null
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}
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}
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