AngularJS polyfill / Object.assign的替代

Question

Failed to instantiate module due to : TypeError: object doesn't support property or method 'assign' at setConfig

I'm trying to run an angular app on IE11. And there is a piece of code in details.js file which is throwing an error.

this.setConfig = (config) => {
    if (config) {
        Object.assign(detailsConfig, config);  
    }
};

Error in the console of IE11 is as below.

[$injector:modulerr] Failed to instantiate module detailsPortal due to: TypeError: Object doesn't support property or method 'assign' at setConfig()

Because of this error, my angular app is not loading on IE11, it is displaying a blank screen.

Answer 1

Instead of Object.assign , use angular.extend :

this.setConfig = (config) => {
    if (config) {
        ̶O̶b̶j̶e̶c̶t̶.̶a̶s̶s̶i̶g̶n̶(̶d̶e̶t̶a̶i̶l̶s̶C̶o̶n̶f̶i̶g̶,̶ ̶c̶o̶n̶f̶i̶g̶)̶;̶ ̶
        angular.extend(detailsConfig, config);  
    }
};

For more information, see

• AngularJS angular.extend Function API Reference