Object doesn't support property or method 'assign'

IE error thrown.

in this function

while (sources.length > 0) {
   var source = sources.shift();
   if (isObject(source)) {
     for (var key in source) {
       if (isObject(source[key])) {
         target[key] = mergeDeep(target[key], source[key]);
       } else {
         Object.assign(target, defineProperty({}, key, source[key]));
       }
     }
   }
 }
 return target;
}

[artemsky]

@riksnelders This code generated by webpack with target of ‘ES5’ for this part of code https://github.com/artemsky/vue-snotify/blob/master/src/util.js#L17

I’ll try to do something with that in next release (soon)

[grantcarthew]

Try this pollyfill from MDN:

if (typeof Object.assign != 'function') {
  // Must be writable: true, enumerable: false, configurable: true
  Object.defineProperty(Object, "assign", {
    value: function assign(target, varArgs) { // .length of function is 2
      'use strict';
      if (target == null) { // TypeError if undefined or null
        throw new TypeError('Cannot convert undefined or null to object');
      }

      var to = Object(target);

      for (var index = 1; index < arguments.length; index++) {
        var nextSource = arguments[index];

        if (nextSource != null) { // Skip over if undefined or null
          for (var nextKey in nextSource) {
            // Avoid bugs when hasOwnProperty is shadowed
            if (Object.prototype.hasOwnProperty.call(nextSource, nextKey)) {
              to[nextKey] = nextSource[nextKey];
            }
          }
        }
      }
      return to;
    },
    writable: true,
    configurable: true
  });
}