Market Research 12:4–10, Womack, J.P. (1993): Mass Customization: The New Frontier in Business Competition. An XML attribute is always a name-value pair. :key has not been set. All Telerik .NET tools and Kendo UI JavaScript components in one package. You give in to your instincts and add a :key based on the array’s loop. 2. Key-values can be used for a variety of purposes. 64-bit floating-point number. So when Vue needs to remove it, both from the state and from the animation, it can tell exactly which one it needs to work with. The main reason is flexibility. The nature of the customer is considered and the need to include business customers demanding product differentiation is noted. (2000): Product variety, life-cycles and rate of innovation — trends in the UK automotive industry. The key element specifies an attribute or element value as a key (unique, non-nullable, and always present) within the containing element in an instance document. A custom attribute declaration begins with the System.AttributeUsageAttribute, which defines some of the key characteristics of your attribute class. What exactly is happening here that breaks our object constancy in the second example? Want to learn more about creating great web apps? Finally, keep an eye out for v-for loops that cycle on an element that contains a stateful element WITHIN it. All Rights Reserved. Open up the Sandbox, and look at the App.vue file. Maybe you are using the amazing Vue CLI 3, and got yourself a nice setup that gives you some eslint errors and hints. These types are defined in the MF_ATTRIBUTE_TYPE enumeration. Maybe you decide to ignore it and to carry on with your avocado-induced nirvana, but then it strikes you one more time. I don’t know about you, but to me, this seems bugged. Browser Support. For