| #! /bin/sh | |
| ### BEGIN INIT INFO | |
| # Provides: jupyter-notebook | |
| # Required-Start: $remote_fs $syslog | |
| # Required-Stop: $remote_fs $syslog | |
| # Default-Start: 2 3 4 5 | |
| # Default-Stop: 0 1 6 | |
| # Short-Description: Start jupyter-notebook | |
| # Description: This file starts a jupyter-notebook session using config | |
| # parameters specified in ~/.jupyter/jupyter_notebook_config.py |
| def crawl(self, current_page): | |
| # modifies various attributes of self depending on the | |
| # html in current_page and returns nothing. | |
| @coroutine | |
| def coro(current_page): | |
| # either return a future of the body of the "next" page or None | |
| next_page_url = next_page_link(current_page) | |
| if next_page_url is None: | |
| yield None |
| var falseyValues = [ | |
| false, | |
| 0, | |
| undefined, | |
| NaN, | |
| "", | |
| null | |
| ]; | |
| falseyValues.map(function (x) {return x ? true : false;}); // [false, false, false, false, false, false] |
| /* basic selection: all <p> tags */ | |
| p { | |
| color: red; | |
| } | |
| /* descendent selector: | |
| all <li> tags that are children of <ul> tags | |
| */ | |
| ul li { | |
| font-size: 24 px; |
| /* | |
| - elem1 { elem2 { ... } } | |
| has the effect of compiling to elem1 elem2 { ... } | |
| - .class1 { &.class2 { ... } } | |
| compiles to .class1.class2 { ... } | |
| - .class1 { .class2 & { ... } } | |
| compiles to .class2 .class1 { ... } | |
| */ | |
| nav { | |
| h1 { |
| // React components must extend the React.Component Class | |
| // and therefore expose a render method, which returns | |
| // JSX (JavaScript XML). | |
| // JSX looks exactly like unquoted HTML, except that | |
| // - the HTML 'class' attribute is referenced via 'className' | |
| // - we can mix in javascript via code blocks enclosed in {} | |
| // - we can send arguments ('props' in React) to components: | |
| // + props are accessed via the `this.props` object | |
| // - we can access state with (`this.state`) | |
| class Comment extends React.Component { |
| import React, { Component } from 'react' | |
| import './App.css' | |
| import ValidationComponent from './ValidationComponent' | |
| import CharComponent from './CharComponent' | |
| class App extends Component { | |
| state = { | |
| userText: '', | |
| textLength: 0, | |
| textArr: [] |