전체 글345 [Python3] typing module We can use a type in Python3. It is not enforced like other strong typed languages, but it can help us. It can be a communication tool with other developers and can prevent mistakes. Syntax The default syntax is like this. # def func_name(param: param_type) -> return_type # func_body def say_hello(name: str) -> str: return f"Hello {name}" Python3 supports bool, int, str, tuple, set, list, and di.. 2021. 7. 3. [Python] Decorator Decorator allows you to dynamically add actions to a function or object without changing the behavior of the function or object. In Python, Decorator can be applied to a function and executed before and after the surrounding function. Simple Example This example changes the input string to the upper case. def to_upper_case(func): text = func() if not isinstance(text, str): raise TypeError("Not a.. 2021. 6. 29. [Vue3] Getting Started with Vue3 + Electron (with Typescript, TailwindCSS) Let's make a desktop application using Vue3. Create a Project using Vue-CLI $ vue create vue-electron Select "Manually select features" for some options. I picked TypeScript, Router, and Vuex. I will use Vue3. And, I will use ESLint with Prettier. Lastly, I will use dedicated config files for easier management. $ cd vue-electron Now, we have our project. Adding Electron Now, let's add Electron t.. 2021. 6. 28. [Vue3] Vuex Usage Vuex is a library that helps create centralized repositories to manage data and state. Create a Project Let's create a project for vuex. 2021.06.02 - [Web/JavaScript] - [Vue3] Getting Started with Vue3 + TypeScript + TailwindCSS Installing Vuex $ vue add vuex You just type this command if you want to use vuex. You can also set it in the create a project stage. Creating Store The store is a react.. 2021. 6. 26. [Vue3] Mixins Mixin is a method of implementing functions separately and combining mixin files into components whenever necessary. Create a Project 2021.06.02 - [Web/JavaScript] - [Vue3] Getting Started with Vue3 + TypeScript + TailwindCSS Let's create a project to start to learn Mixin. Create Mixins mixins/mixin.ts export default { methods: { $callMixin(name: string): string { return `Hello, ${name}`; }, }, .. 2021. 6. 26. [Vue3] Composition API Composition API is a function-based API added to Vue3. Let's take a look at this what is this. Create a Project 2021.06.02 - [Web/JavaScript] - [Vue3] Getting Started with Vue3 + TypeScript + TailwindCSS First of all, create a project for testing our example. Traditional Methods Let's create an adder component in the traditional way. components/composition_api.vue Traditional Method + = {{ resul.. 2021. 6. 25. [vue3] Plugins Vue3 has a plugin feature. Let's learn about this. Create a Project Create a project for a plugin example. 2021.06.02 - [Web/JavaScript] - [Vue3] Getting Started with Vue3 + TypeScript + TailwindCSS Creating Plugins Let's create a plugin file. plugins/vending.ts import { Plugin } from "vue"; export const vendingPlugin: Plugin = { install(app, options?) { app.config.globalProperties.$pick = (key:.. 2021. 6. 25. [Vue3] Custom Directives Vue3 allows that user defines their own directives. Create a Project Let's create a project first. 2021.06.02 - [Web/JavaScript] - [Vue3] Getting Started with Vue3 + TypeScript + TailwindCSS Create Own Directives in Global Creating a global custom directive uses directive method. main.ts const app = createApp(App) app.directive("focus", { mounted: (el) => el.focus(), }); app.mount("#app"); We cr.. 2021. 6. 24. [Vue3] Send Data from Ancestor Component using Provide and Inject We can send data from a parent component to a child component using props. However, the deeper the hierarchy, the more redundant delivery, the more complexity of the code. In this situation, you can simply use provide and inject. Just use provide where you want to send data and use inject where you want to use the data. Create a Project Please create a project to test this feature. 2021.06.02 - .. 2021. 6. 20. 이전 1 ··· 18 19 20 21 22 23 24 ··· 39 다음
