Issues encountered while compacting JavaScript file in an ASP.NET program

My JavaScript code is as follows:

class UrlParameters {

constructor() {
    this.initVariablesWithDefaultValues();
    var serverUrlData = HelperJSViewBag.getValue("UrlData", true);
    var urlVariables = serverUrlData ? serverUrlData : HLinks.getAllUrlVariables();
    var sessionID = this.convertToString(urlVariables["sessionID"]);
    var idSession = this.convertToString(urlVariables["idSession"]);
    var sessionid = this.convertToString(urlVariables["sessionid"]);

    if (idSession.length > 0)
        this.sessionID = idSession;
    else if (sessionid.length > 0)
        this.sessionID = sessionid;
    else 
        this.sessionID = sessionID;

    // more code here...
}

static getInstance() {
    if (typeof UrlParameters.urlParameters === "undefined")
        UrlParameters.urlParameters = new UrlParameters();

    return UrlParameters.urlParameters;
}

getData() {
    return {
        // data values here...
    }
}

// other methods and functions...

convertToString(value, defaultValue) {
    // conversion logic here
}

convertToInt(value, defaultValue) {
    // conversion logic here
}

convertToBoolean(value, defaultValue) {
    // conversion logic here
}
}

When I enable optimizations using

BundleTable.EnableOptimizations = true
, the ASP.NET does not minify the files properly. Instead, it returns a new file with errors such as:

// Error messages here...
 

I have searched extensively online for a solution to this issue but haven't found one yet. Could it be due to the usage of ES6 standard in my code?

The version of System.Web.Optimization that I am currently using is 1.1.0.0.

Answer №1

System.Web.Optimization does not have built-in support for ES6 syntax

It is recommended that you incorporate gulp, grunt, or webpack into your development workflow to handle the minification of your scripts

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