JavaScript How to run parseString() function synchronously in Javascript node.js
I have this code, where I run parseString()to extract some information from an xml file
function parseTime(){
var parser = new xml2js.Parser();
var data = fs.readFileSync('C:\\Temp\\tasks\\acis\\110-1100.sat\\110-1100.sat.response.xml', {encoding:'utf8'});
parser.parseString(data, function (err, result) {
var timeString = result.Message.Response[0].Events[0].MessageReportEvent[8].$.Message;
var fileTime = timeString.substr(13,20);
var filetimeVal = parseFloat(fileTime);
console.log(filetimeVal);
return filetimeVal;
});
};
What changes should I do to run parseString synchronously or is there a way to extract the xml data via a deifferent synchronous method
The callback of the parseString already runs synchronously. Your program would reach the parsed results before it reaches any other line of code.
There is async switch which is false by default in the options.
However the developers warn that this default might change in the future.
async (default false): Should the callbacks be async? This might be an incompatible change if your code depends on sync execution of callbacks. Future versions of xml2js might change this default, so the recommendation is to not depend on sync execution anyway. Added in 0.2.6.
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