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28 lines
609 B
28 lines
609 B
const genfun = require('./')
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const { d } = genfun.formats
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function multiply (a, b) {
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return a * b
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}
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function addAndMultiplyNumber (val) {
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const fn = genfun(`
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function (n) {
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if (typeof n !== 'number') {
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throw new Error('argument should be a number')
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}
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const result = multiply(${d(val)}, n + ${d(val)})
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return result
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}
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`)
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// use fn.toString() if you want to see the generated source
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return fn.toFunction({multiply})
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}
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const addAndMultiply2 = addAndMultiplyNumber(2)
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console.log(addAndMultiply2.toString())
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console.log('(3 + 2) * 2 =', addAndMultiply2(3))
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