Splet24. jul. 2024 · Cause of Error: Somewhere the code is trying to use an object or a variable as a constructor, which is not a constructor. Example 1: In this example, the variable (‘var2’) which is a string, is used as a constructor, So the error has occurred. HTML Type Error Splet10. jan. 2024 · You can check it out in the docs. Then, you can go to project/index.js and do. const { Foo } = require ('./testmodule'); const foo = new Foo (1); // foo is typed as Foo on your IDE/Text Editor console.log (foo.bar); // This will print 1 to the console. For now, be aware that this is just a simple example.

TypeError: Class extends value undefined is not a constructor or null

SpletFor technical reasons, the binary files of ngx-extended-pdf-viewer are not compatible with Angular 5 or below. So do not run npm install. Instead, copy these files into your local project: pdf.js; pdf.worker.js; viewer.js; the folder ngx-extended-pdf-viewer; the locale folder; After that, follow these steps: Load the file pdf.js in index.html jeff chang mercy college

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SpletAfter that，I'm getting the following message, it seems not works， Uncaught TypeError: PdfjsWorker is not a constructor webpack.js:21 js chunk-vendors.js:10287 … SpletThere was an attempt to use an object or a variable as a constructor, but that object or variable is not a constructor. See constructor or the new operator for more information … Spletconst A = require ('A'); // this line causes the error class B { constructor () { this.a = new A (); } } module.exports = B; There are several different ways to resolve this issue depending … oxford air cadet parade shoe