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question.txt
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TODO 1. want to install back express after del node_modules, but fail, why? (technical error)
-> need to add --save ; but why other dont need, automatically add in dependencies?
2. meaning of @types solved
3. modules have different installation methods, but how i can know their methods? (search npm)
4. why have to add the info about installation in file app.ts, or unnecessary? (unnecessary)
5. 什麼是 JavaScript 的 no typing require? Solved
JavaScript 的 no typing require 是指在使用 JavaScript 時,不需要明確地聲明變量的類型,而是可以直接給變量賦值。
6. const module = require("some-packages").default; default's meaning? (depend on where the modules located)
7. dont know when should i input coding in vscode's terminal and pc terminal? (same function but pc terminal is easy to handle)
8. import {lib} from './lib' ; need to declare the data type of module every time?
9. "export" ; do i need to add export in each single item, even they are within the same file; if no, how can i write