| 1 | importScripts('../../../dist/math.js')
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| 2 |
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| 3 | // create a parser
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| 4 | const parser = self.math.parser()
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| 5 |
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| 6 | self.addEventListener('message', function (event) {
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| 7 | const request = JSON.parse(event.data)
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| 8 | let result = null
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| 9 | let err = null
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| 10 |
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| 11 | try {
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| 12 | // evaluate the expression
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| 13 | result = parser.evaluate(request.expr)
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| 14 | } catch (e) {
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| 15 | // return the error
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| 16 | err = e
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| 17 | }
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| 18 |
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| 19 | // build a response
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| 20 | const response = {
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| 21 | id: request.id,
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| 22 | result: result,
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| 23 | err: err
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| 24 | }
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| 25 |
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| 26 | // send the response back
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| 27 | self.postMessage(JSON.stringify(response))
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| 28 | }, false)
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