/debug:fastlink PDBs
is more robust. Changes in the PDB/DIA lead to reduced latency and a
30% reduction in heap memory consumption in the VS debugger that used to
cause crashes.__finally handler.
Source Code for Windows NT 3.5 and Original Xbox Has Leaked
Windows NT 3.5 was first released in 1994, with the RTM build 3.5.807.1.
import { decorate } from "mobx";
class Count {
value = 0;
}
decorate(Count, { value: observable });
const count = new Count(); const text = observable({
value: "Hello world!",
get uppercase() {
return this.value.toUpperCase();
}
}); > create-react-app state-management-with-mobx-part3 > cd state-management-with-mobx-part3 > npm start
> npm install --save mobx
<!DOCTYPE html>
<html lang="en">
<head>
<title>MobX Basics, part 3</title>
<meta charset="UTF-8" />
<link href="src/styles.css" />
</head>
<body>
<main>
<input id="text-input" />
<p id="text-display"></p>
<p id="text-display-uppercase"></p>
</main>
<script src="src/index.js"></script>
</body>
</html> import { autorun, computed, observable } from "mobx";
const input = document.getElementById("text-input");
const textDisplay = document.getElementById("text-display");
const loudDisplay = document.getElementById("text-display-uppercase");
class Text {
@observable value = "Hello World";
@computed get uppercase() {
return this.value.toUpperCase();
}
}
const text = new Text();
input.addEventListener("keyup", event => {
text.value = event.target.value;
});
autorun(() => {
input.value = text.value;
textDisplay.textContent = text.value;
loudDisplay.textContent = text.uppercase;
}); ./src/index.js
SyntaxError: \src\index.js: Support for the experimental syntax 'decorators-legacy' isn't currently enabled (8:3):
6 |
7 | class Text {
> 8 | @observable value = "Hello World";
| ^
9 | @computed get uppercase() {
10 | return this.value.toUpperCase();
11 | } import { observable, computed, action } from "mobx";
class Timer {
@observable start = Date.now();
@observable current = Date.now();
@computed
get elapsedTime() {
return this.current - this.start + "milliseconds";
}
@action
tick() {
this.current = Date.now();
}
} import { observable, computed, action, decorate } from "mobx";
class Timer {
start = Date.now();
current = Date.now();
get elapsedTime() {
return this.current - this.start + "milliseconds";
}
tick() {
this.current = Date.now();
}
}
decorate(Timer, {
start: observable,
current: observable,
elapsedTime: computed,
tick: action
}); const Counter = observer(({ count }) => {
return (
// ...
);
}); > create-react-app my-proj1 --typescript
{
"compilerOptions": {
// ...
"experimentalDecorators": true
}
} > npm i --save-dev customize-cra react-app-rewired
const {
override,
addDecoratorsLegacy,
disableEsLint
} = require("customize-cra");
module.exports = override(
// enable legacy decorators babel plugin
addDecoratorsLegacy(),
// disable eslint in webpack
disableEsLint()
); "scripts": {
"start": "react-app-rewired start",
"build": "react-app-rewired build",
"test": "react-app-rewired test",
"eject": "react-app-rewired eject"
}, {
"extends": "react-app",
"parserOptions": {
"ecmaFeatures": {
"legacyDecorators": true
}
}
} {
"env": {
"node": true,
"commonjs": true,
"browser": true,
"es6": true,
"mocha": true
},
"settings": {
"react": {
"version": "detect"
}
},
"parserOptions": {
"ecmaFeatures": {
"jsx": true,
"legacyDecorators": true
},
"ecmaVersion": 2018,
"sourceType": "module"
},
"plugins": [
"babel",
"react",
"react-hooks",
"react-redux",
"no-async-without-await",
"css-modules",
"filenames",
"simple-import-sort"
],
"rules": {
"no-const-assign": "warn",
"no-this-before-super": "warn",
"constructor-super": "warn",
"strict": [
"error",
"safe"
],
"no-debugger": "error",
"brace-style": [
"error",
"1tbs",
{
"allowSingleLine": true
}
],
"no-trailing-spaces": "error",
"keyword-spacing": "error",
"space-before-function-paren": [
"error",
"never"
],
"spaced-comment": [
"error",
"always"
],
"vars-on-top": "error",
"no-undef": "error",
"no-undefined": "warn",
"comma-dangle": [
"error",
"never"
],
"quotes": [
"error",
"double"
],
"semi": [
"error",
"always"
],
"guard-for-in": "error",
"no-eval": "error",
"no-with": "error",
"valid-typeof": "error",
"no-unused-vars": "error",
"no-continue": "warn",
"no-extra-semi": "warn",
"no-unreachable": "warn",
"no-unused-expressions": "warn",
"max-len": [
"warn",
80,
4
],
"react/prefer-es6-class": "warn",
"react/jsx-boolean-value": "warn",
"react-hooks/rules-of-hooks": "error",
"react-hooks/exhaustive-deps": "warn",
"react/prop-types": "off",
"react-redux/mapDispatchToProps-returns-object": "off",
"react-redux/prefer-separate-component-file": "off",
"no-async-without-await/no-async-without-await": "warn",
"css-modules/no-undef-class": "off",
"filenames/match-regex": [
"off",
"^[a-zA-Z]+\\.*\\b(typescript|module|locale|validate|test|action|api|reducer|saga)?\\b$",
true
],
"filenames/match-exported": "off",
"filenames/no-index": "off",
"simple-import-sort/sort": "error"
},
"extends": [
"react-app",
"eslint:recommended",
"plugin:react/recommended",
"plugin:react-redux/recommended",
"plugin:css-modules/recommended"
],
"globals": {
"Atomics": "readonly",
"SharedArrayBuffer": "readonly",
"process": true
}
} >npm i --save-dev eslint babel-eslint eslint-config-react-app eslint-loader eslint-plugin-babel eslint-plugin-react eslint-plugin-css-modules eslint-plugin-filenames eslint-plugin-flowtype eslint-plugin-import eslint-plugin-no-async-without-await eslint-plugin-react-hooks eslint-plugin-react-redux eslint-plugin-redux-saga eslint-plugin-simple-import-sort eslint-loader typescript
const {
override,
addDecoratorsLegacy,
useEslintRc
} = require("customize-cra");
module.exports = override(
addDecoratorsLegacy(),
useEslintRc(".eslintrc.json")
); Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option in your 'tsconfig' or 'jsconfig' to remove this warning.ts(1219)
{
"compilerOptions": {
"experimentalDecorators": true,
"allowJs": true
}
} .NET 5 Preview 7 is now available and is ready for evaluation. Here’s what’s new in this release:
In the eighteen years that I’ve been doing Web development, a lot has changed. We started out creating HTML pages to present static information to our users. We then used classic ASP to get database data and incorporate that into our pages. To use both of these technologies, we had to know a lot about HTML, CSS, and JavaScript. Along came .NET and we started rendering everything on the server-side. We forgot a lot about HTML, CSS, and JavaScript as Web Forms wrapped up a lot of that for us. Web Forms’ architecture closely mimicked the way developers created desktop applications. This was great for helping developers move to the Web, but unfortunately hid a lot of the power of the Web, and also tended to be a little slow.
Unit testing is an integral part of modern software development. For years, Moq has been a popular choice in the .NET ecosystem for creating mock objects. Recent concerns over Moq’s SponsorLink feature have prompted some developers to consider such a switch. In this article, we delve into why you might consider NSubstitute over Moq and how to make the transition.
Important dates regarding apps with Windows Phone 8.x and earlier and Windows 8/8.1 packages submitted to Microsoft Store
// The getDate() function returns a nested function which refers the 'date' variable defined
// by outer function getDate()
function getDate() {
var date = new Date(); // This variable stays around even after function returns
// nested function
return function () {
return date.getMilliseconds();
}
}
// Once getDate() is executed the variable date should be out of scope and it is, but since // the inner function // referenes date, this value is available to the inner function. var dt = getDate(); alert(dt()); alert(dt());
function myNonClosure() {
var date = new Date();
return date.getMilliseconds();
}
var MyDate = function () {
var date = new Date();
var getMilliSeconds = function () {
return date.getMilliseconds();
}
}
var dt = new MyDate();
alert(dt.getMilliSeconds()); // This will throw error as getMilliSeconds is not accessible.
// This is closure
var MyDate = function () {
var date = new Date(); // variable stays around even after function returns
var getMilliSeconds = function () {
return date.getMilliseconds();
};
return {
getMs : getMilliSeconds
}
}
var dt = new MyDate(); alert(dt.getMs()); // This should work.
(function($) {
// $() is available here
})(jQuery);
// file1.js
function saveState(obj) {
// write code here to saveState of some object
alert('file1 saveState');
}
// file2.js (remote team or some third party scripts)
function saveState(obj, obj2) {
// further code...
alert('file2 saveState");
}
<script src="file1.js" type="text/javascript"></script> <script src="file2.js" type="text/javascript"></script>
function App() {
var save = function (o) {
// write code to save state here..
// you have acces to 'o' here...
alert(o);
};
return {
saveState: save
};
}
var app = new App();
app.saveState({ name: "rajesh"});