Is there a way to create interfaces in ES6 / Node 4?
Interfaces are not part of the ES6 but classes are. If you really need them, you should look at TypeScript which support them.
ecmascript-6
Error: Couldn’t find preset “es2015” relative to directory “/Users/username”
You only need to install babel-preset-es2015: CLI usage example:
Getting “Cannot call a class as a function” in my React Project
I’m trying to add a React map component to my project but run into an error. I’m using Fullstack React’s blog post as a reference. I tracked down where the error gets thrown in google_map.js line 83: Here is my map component so far. The page loads just fine (without a map) when I comment … Read more
where is create-react-app webpack config and files?
If you want to find webpack files and configurations go to your package.json file and look for scripts You will find that scripts object is using a library react-scripts Now go to node_modules and look for react-scripts folder react-script-in-node-modules This react-scripts/scripts and react-scripts/config folder contains all the webpack configurations.
Map vs Object in JavaScript
According to MDN: A Map object can iterate its elements in insertion order – a for..of loop will return an array of [key, value] for each iteration. and Objects are similar to Maps in that both let you set keys to values, retrieve those values, delete keys, and detect whether something is stored at a key. Because … Read more
.filter is not a function
filter is a method on arrays. Since the code you posted contains an object, you’re seeing this error. You may want to apply filter after getting all the values from the object using Object.values, like this:
React statics with ES6 classes
statics only works with React.createClass. Simply declare the method as a static class method: Regarding You are literally creating a statics property on the React object. That property does not magically extend your component.
Expected ‘this’ to be used by class method
you should bind the function to this as the ESLint error says “Expected ‘this’ to be used by class method ‘getUrlParams’ as you are not using getUrlParams during render (like onClick()) so the above technique is good which we can call it “usage of arrow function in class property”. there are other ways of binding … Read more
unexpected strict mode reserved word — yield? Node v0.11, harmony, es6
rying to use a new ES6 based node.js ODM for Mongo (Robe http://hiddentao.github.io/robe/) Getting “unexpected strict mode reserved word” error. Am I dong something wrong here? test0.js Run it:
Does ECMAScript 6 have a convention for abstract classes?
ES2015 does not have Java-style classes with built-in affordances for your desired design pattern. However, it has some options which may be helpful, depending on exactly what you are trying to accomplish. If you would like a class that cannot be constructed, but whose subclasses can, then you can use new.target: For more details on new.target, you … Read more