Last change
on this file since 1ad8e64 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
initial commit
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File size:
344 bytes
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1 | module.exports = thunkyp
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2 |
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3 | function thunkyp (fn) {
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4 | let running = null
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5 |
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6 | return ready
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7 |
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8 | function ready () {
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9 | if (running) return running
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10 | const p = fn()
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11 | if (!(p instanceof Promise)) running = Promise.resolve(p)
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12 | else running = p
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13 | running.catch(onerror)
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14 | return running
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15 | }
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16 |
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17 | function onerror () {
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18 | running = null
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19 | }
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20 | }
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