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*.apkg The .apkg file is a zip file (as you know). Inside, you'll find the collection (an sqlite3 database of notes/cards), the media file which you were trying to open, and a bunch of numbered files 0-whatever number(these are media files). Just use 7zip tool open the apkg file and extract into a folder. open the "media" file via a text editor tool to find the media file extension. example of "media" {"16486": "COCA_16486.mp3", } rename "16486" file to a mp3 file, then you got the media file. how media used in flash card Export your flash cards into a plain text. [sound:COCA_16486.mp3] spatially <div style=''>英['speɪʃəlɪ] 美['speɪʃəlɪ]</div> <div style=''>adv.空间地，存在于空间地；</div> "<div><br /></div><div style='color:RosyBrown'>ADJ</div><div style='color:OrangeRed'>空间的;与空间有关的</div><div style=""font-weigh

Error: ld.gold: error: /usr/lib/gcc/x86_64-linux-gnu/5.3.1/../../../x86_64-linux-gnu/crti.o: unsupported reloc 42 against global symbol gmon_start Solution: export GYP_DEFINES="linux_use_bundled_gold=0"

Chart UI Codes ChartComponent.js import React, { Component } from 'react'; import {Chart, Axis, Tooltip, Geom, Coord, Label} from 'bizcharts'; import DataSet from '@antv/data-set'; const { DataView } = DataSet; export class LineChart extends Component { render() { const { data, width, height } = this.props; if (!data || data.length <= 0) return null; const ytitle = { autoRotate: true, offset: -10, textStyle: { fontSize: '22', textAlign: 'left', fill: 'rgb(75,83,87)', rotate: 0 }, position: 'end', }; const xtitle = { autoRotate: true, offset: -20, textStyle: { fontSize: '22', textAlign: 'center', fill: 'rgb(75,83,87)', rotate: 0 }, position: 'end', }; const line = { stroke: 'rgb(197,197,200)', lineWidth: 2

Chart UI key codes explaintion: <Coord type='theta' innerRadius={0.45} /> without 'innerRadius={0.45}', UI will looks like: without below codes, UI will looks like: <Geom select={[false,{}]} type='intervalStack' position='percent'  color={['type', ['rgba(255, 255, 255, 0)']]}  style={{stroke: 'rgba(152,191,182,1)', lineWidth: 1}}>  </Geom> Codes ChartComponent.js import React, { Component } from 'react'; import {Chart, Axis, Tooltip, Geom, Coord, Label} from 'bizcharts'; import DataSet from '@antv/data-set'; const { DataView } = DataSet; export class ScoreChart extends Component { render() { const { width, height, score } = this.props; const scoreData = [ { type: 'Score', value: score }, { type: '', value: 10 - score }, ]; const scoreDv = new DataView(); scoreDv.source(scoreData) .transform({ type: 'pe

Test content cat test-sed.txt aaa/bbb/ccc/ddd/eee fff/ggg/ss replace "ccc/ddd" to "CCC/DDD" via sed NEW_STRING="CCC/DDD" sed -i "s:ccc/ddd:${NEW_STRING}:" test-sed.txt Notes: use ':' as seperate char rather than '/', which is default use "" include the replace command

Solution: In order to use await, the function directly enclosing it needs to be async. example codes: async tryGetUserName() { let session = await Auth.currentSession(); ...... } async should be there, otherwise you will get the error.

Issue Can't Load URL: The domain of this URL isn't included in the app's domains. To be able to load this URL, add all domains and subdomains of your app to the App Domains field in your app settings. Scenario create a facebook app to get an appid use that appid in website to initialized the facebook javascript SDK use FB.ui to share content to facebook full source codes <!-- init facebook js sdk via your appid --> <script> window.fbAsyncInit = function() { FB.init({ appId : 'yourappid', autoLogAppEvents : true, xfbml : true, version : 'v3.1' }); }; (function(d, s, id){ var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) {return;} js = d.createElement(s); js.id = id; js.src = "https://connect.facebook.net/en_US/sdk.js"; fjs.parentNode.insertBefore(js, fjs); }(document, 'script', 'facebook-jssdk'