| 1 | const no = require('not-defined')
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| 2 |
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| 3 | /**
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| 4 | * Extract data attribute, if any, and check it
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| 5 | *
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| 6 | * @param {*} arg
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| 7 | *
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| 8 | * @returns {*} data
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| 9 | */
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| 10 |
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| 11 | function toData (arg) {
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| 12 | var data
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| 13 |
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| 14 | if (no(arg.data)) data = arg
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| 15 | else data = arg.data
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| 16 |
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| 17 | if (no(data)) throw new TypeError('No data')
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| 18 |
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| 19 | return data
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| 20 | }
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| 21 |
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| 22 | module.exports = toData
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