ecmascript-6 Archives - Page 5 of 9

where is create-react-app webpack config and files?

I create a ReactJS project with the create-react-app package and that worked well, but I cannot find webpack files and configurations. How does ...

May 15, 2022
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Can I use ES6’s arrow function syntax with generators? (arrow notation)

That is, how do I express function *(next) {} with arrow syntax? I’ve tried all the combinations I could think of, and I ...

May 15, 2022
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Are variables declared with let or const hoisted?

I have been playing with ES6 for a while and I noticed that while variables declared with var are hoisted as expected… console.log(typeof ...

May 14, 2022
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Is it possible to import modules from all files in a directory, using a wildcard?

With ES6, I can import several exports from a file like this: import {ThingA, ThingB, ThingC} from 'lib/things'; However, I like the organization ...

May 14, 2022
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When to use ES6 class based React components vs. functional ES6 React components?

After spending some time learning React I understand the difference between the two main paradigms of creating components. My question is when should ...

May 12, 2022
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Why was the name ‘let’ chosen for block-scoped variable declarations in JavaScript?

I understand why var takes that name – it is variable, const – it is a constant, but what is the meaning behind ...

May 11, 2022
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Access to ES6 array element index inside for-of loop

We can access array elements using a for-of loop: for (const j of...

May 11, 2022
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How to scroll to an element?

I have a chat widget that pulls up an array of messages every time I scroll up. The problem I am facing now ...

May 11, 2022
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Typescript export vs. default export

What is the difference in Typescript between export and default export. In all the tutorials I see people exporting their classes and I ...

May 10, 2022
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Declaring static constants in ES6 classes?

I want to implement constants in a class, because that’s where it makes sense to locate them in the code. So far, I ...

May 10, 2022
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