sgauthier
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24 lines
452 B
JavaScript
24 lines
452 B
JavaScript
'use strict'
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module.exports = factory
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// Construct a state `toggler`: a function which inverses `property` in context
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// based on its current value.
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// The by `toggler` returned function restores that value.
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function factory(key, state, ctx) {
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return enter
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function enter() {
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var context = ctx || this
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var current = context[key]
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context[key] = !state
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return exit
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function exit() {
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context[key] = current
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}
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}
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}
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