28 lines
1.2 KiB
JavaScript
28 lines
1.2 KiB
JavaScript
let rTrue=['t','true','y','yes','on','affirmative','positive','up','enabled','affirmative','yea','yep','sure','online','set','closed']
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let rFalse=['f','false','n','no','off','negative','negatory','down','disabled','nope','offline','unset','open']
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function createBoolean (opts={}) {
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return (value => {
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if (opts.addTrue) rTrue = rTrue.concat(opts.addTrue)
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if (opts.addFalse) rFalse = rFalse.concat(opts.addFalse)
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if (opts.True) rTrue = opts.True
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if (opts.False) rFalse = opts.False
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if (value===undefined) return opts.undefined==='same' ? undefined : (opts.undefined || false) // false by default
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if (value===null) return opts.null==='same' ? null : (opts.null || false) // false by default
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if (!isNaN(Number(value))) return (opts.number==='default' ? !!value : (Number(value) > (opts.number || 0)? true : false))
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if (typeof value==='string') {
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value = value.trim()
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value = value.toLowerCase()
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if (rTrue.includes(value)) return true
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if (rFalse.includes(value)) return false
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return !!opts.string || false
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}
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return !!value
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})
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}
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const toBoolean = createBoolean()
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export default toBoolean
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export { toBoolean, createBoolean, rTrue, rFalse }
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