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30 lines
570 B
JavaScript
30 lines
570 B
JavaScript
importScripts('https://unpkg.com/mathjs@4.4.1/dist/math.min.js');
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// create a parser
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var parser = math.parser();
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self.addEventListener('message', function(event) {
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var request = JSON.parse(event.data),
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result = null,
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err = null;
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try {
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// evaluate the expression
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result = parser.eval(request.expr);
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}
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catch (e) {
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// return the error
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err = e;
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}
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// build a response
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var response = {
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id: request.id,
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result: result,
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err: err
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};
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// send the response back
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self.postMessage(JSON.stringify(response));
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}, false); |