The State of Angular - Speaker Deck

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@yourtwitter The State of Angular Minko Gechev twitter.com/mgechev  github.com/mgechev  blog.mgechev.com

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@mgechev 100

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@mgechev

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@mgechev 2,000+ Projects at Google

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@yourtwitter https://unsplash.com/photos/rafblRbne3o

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@mgechev v10 RC is out

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@mgechev

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Predictability vs Flexibility trade-offs Predictable Flexible

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Static vs Dynamic trade-offs Static Dynamic

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Static vs Dynamic trade-offs Static Dynamic Rust Haskell Idris C# / Java Go JavaScript TypeScript Ruby

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Static vs Dynamic trade-offs Static Dynamic

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• Compile-time optimizations • Excellent IDE/text editor support • Strict type checking • Source code visualization • Lazy component loading • Dynamic UI assembling • Fast (no) builds Static Dynamic

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twitter.com/mgechev

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twitter.com/mgechev 15% of bugs detectable at build time

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twitter.com/mgechev

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twitter.com/mgechev

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@mgechev What’s in v10?

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@mgechev v10 focus • Opt-in strict flag • Increase visibility

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@mgechev v10 focus • Opt-in strict flag • Increase visibility

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@mgechev Strict Mode " Strict TypeScript type checking strictTemplates in Angular Opt-in ES5 support Opt-in CommonJS support Reduced side-effects

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@mgechev

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twitter.com/mgechev >15% of bugs detectable at build time

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@mgechev Opt-in CommonJS

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twitter.com/mgechev https://web.dev/commonjs-larger-bundles/

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@mgechev !// index.js import { add } from './utils'; console.log(add(1, 2)); !// utils.js module.exports.add = (a, b) !=> a + b, module.exports.subtract = (a, b) !=> a - b, module.exports.multiply = (a, b) !=> a * b, module.exports.divide = (a, b) !=> a / b, const { maxBy } = require('lodash-es'); module.exports.max = arr !=> maxBy(arr)

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@mgechev !// output.js !!... (() !=> { "use strict"; !/* harmony import !*/ var _utils!__WEBPACK_IMPORTED_MODULE_0!__ = !__webpack_require!__(288); const subtract = (a, b) !=> a - b; console.log((0,_utils!__WEBPACK_IMPORTED_MODULE_0!__!/* .add !*/ .IH)(1, 2)); })();

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@mgechev !// utils.js export const add = (a, b) !=> a + b; export const subtract = (a, b) !=> a - b; export const multiply = (a, b) !=> a * b; export const divide = (a, b) !=> a / b; import { maxBy } from 'lodash-es'; export const max = arr !=> maxBy(arr); !// index.js import { add } from './utils'; console.log(add(1, 2));

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@mgechev !// output.js (()!=>{"use strict";console.log(1+2)})();

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@mgechev !// utils.js module.exports.add = (a, b) !=> a + b, module.exports.subtract = (a, b) !=> a - b, module.exports.multiply = (a, b) !=> a * b, module.exports.divide = (a, b) !=> a / b, const { maxBy } = require('lodash-es'); module.exports.max = arr !=> maxBy(arr)

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@mgechev !// output.js /******/ (() !=> { !// webpackBootstrap /******/ "use strict"; !// CONCATENATED MODULE: ./utils.js!** const add = (a, b) !=> a + b; const subtract = (a, b) !=> a - b; !// CONCATENATED MODULE: ./index.js!** const index_subtract = (a, b) !=> a - b;!** console.log(add(1, 2));!** /******/ })();

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@mgechev !// example.js module.exports[localStorage.getItem(Math.random())] = () !=> { … };

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@yourtwitter Examples Automated updates Optimized i18n pipeline Angular Universal Compile-time optimizations Efficient prefetching

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@mgechev Zero-overhead i18n

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Angular compile-time i18n (Ivy) src lib Link & optimize l10n repeat ngc

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twitter.com/mgechev @mgechev

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@mgechev Thank you! twitter.com/mgechev  github.com/mgechev  blog.mgechev.com Survey: mgv.io/talk