Essential TypeScript

使用型別安全的JavaScript強化Web開發技巧 「學習TypeScript是一種優秀的、平易近人的工具。Josh介紹TypeScript的關鍵部分，無須被不必要的細節所困擾。」 ―Ryan Cavanaugh, 微軟首席軟體工程師，TypeScript開發團隊經理 「Josh的專業知識貫穿了學習TypeScript的主軸。不僅具有深度有趣的教育內容且引人入勝。」 ―Cassidy Williams, 經驗豐富的開發工程師，創業顧問和投資人 TypeScript征服了JavaScript的世界。TypeScript在開發人員問卷調查中，被認定為世界上發展最迅速且最受歡迎的程式語言之一，已經廣泛應用於消費和商業產品中，最為熟知的是它有助於擴充大規模Web應用程式。 然而TypeScript到底是什麼？以及它如何使用、內部的運作模式？這本書適合初學者及進階JavaScript程式人員，從對「型別、型別系統」的一無所知到完全掌握TypeScript基礎知識。 讀者將學習到： ‧TypeScript的優勢及其型別系統在「原生」JavaScript之上的特殊之處 ‧使用僅限於開發過程中的型別註記，來操作TypeScript的型別系統 ‧分析和解讀程式碼，協助使用者擴充現有的開發模式 ‧幫助使用者處理陣列、類別、函數、物件和其他重要的內建JavaScript資料結構 ‧有效調整設定TypeScript配置選項，為團隊和專案定制TypeScript編譯器選項 ‧提供的自動重構和程式碼智慧搜尋等多種IDE整合環境工具，協助快速開發並減少錯誤

創造應用程式規模的JavaScript 「如果你想要深入學習TypeScript，找這本書就對了。《TypeScript程式設計》展示了在JavaScript之上使用型別系統的所有好處，並提供深刻的見解幫助你精通此語言。」 ―Minko Gechev 工程師，Google Angular團隊 「《TypeScript程式設計》讓我快速且有效地了解TypeScript工具鏈和整個生態系統。我有過的每

DescriptionEssential Reading Second Edition teaches young adult and adult learners the essential reading skills. This second edition is now even better in overcoming the challenges students face in st

An essential resource that gives you the confidence you need to communicate better in FrenchEssential French Verbs provides you with a complete overview of French verbs and how they work in the variou

TDD 不是沒用，是你沒有好好使用 系統越來越大時，可以幫助你將系統維持在一定的整潔度 重點思維 ✔ 不只是要保護功能，更要能夠促進理解 ✔ 在完成功能的同時，也要維持系統品質 ✔ 不需總是預留彈性，但能隨時創造彈性 ✔ 以模式為思考中心，看似不變實則萬變 ≡≡≡≡≡≡≡≡≡≡≡≡≡≡ 你很忙，我知道。 從前你說：「寫程式都沒時間了，哪來時間寫測試？」 現在程式都是 AI 在寫，總該有時間寫測試了吧？ 你又改說：「AI 寫得這麼快，測試也叫 AI 寫就好呀！」 結果呢？測試一大堆，都測不到真正的問題。改一行壞三個功能、半夜被 Call、看不懂 AI 寫什麼， 省下來的時間都拿去幫 AI Debug 了。 越困難的事，越要簡單做 業務邏輯已經夠複雜了，還要兼顧正確性、可維護性、可擴充性、可讀性？ TDD 的長處，正是「面對困難的開發挑戰，用最小、最簡單的步驟前進」。 開發不再是一次解決大問題，而是透過讓一連串簡單的小成功，堆疊出可靠的系統。 不要宗教口號，而要實戰案例 TDD 不是要你寫更多功能，而是用更安全穩定的方式做你原本就在做的事。 TDD 不是口號，也不是宗教，而是一種讓你吃得下飯、睡得著覺，還有餘裕思考的開發節奏。 在本書中，我們要學習的是： 🎯 如何用測試保護自己、不是折磨自己 🎯 用 TDD 找出真正該改的地方，而不是亂 Refactor 🎯 讓團隊從「怕改」變成「敢改」；把「改壞東西」變成「放心重構」 本書程式碼：https://github.com/bearhsu2/ithelp2023 教學影片：https://www.youtube.com/watch?v=7mhf8vRGqSM&list=PLvBh-90IwbPJH33DpWvaIxz-Ud_9j9doU 作者繼2022年出版關於測試與程式架構的《你就是不寫測試才會沒時間：Kuma的單元測試實戰—Java篇》後，再推出《你就是不寫測試才會沒時間：Kuma的TDD實戰—TypeScript篇》，書中從0開始設計並實作一個Slot遊戲，並用TDD的方式實作，來傳達給讀者「TDD可以Work」這個重要訊息，幫助那些為「沒時間」所苦的開發者解決痛點，在開發的路上走得更輕鬆順利！

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Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. This reader is based on the animat

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. This reader is based on the hit 20

A word book featuring real-life people, places, and things--as well as beloved characters and objects from the works of Dr. Seuss!This super-sturdy board book introduces 100 essential vocabulary words

An essential teacher's companion to an innovative, uniquely visual English-language course, this guide helps English teachers--including those for whom English is not their native language--create cle

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. This reader is based on the animat

A Short History of Tractors in Ukrainian is bestselling author Marina Lewycka's hilarious and award winning debut novel, now available as a Penguin Essential for the first time. 'Two years after my mo

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Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. There are pigs everywhere on Bird

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. There are pigs everywhere on Bird

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. The Ice Age films are popular with

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. The Little Prince lives on a very

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Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. The _How to Train Your Dragon_ mov

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. This level 3 Popcorn ELT Reader is

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. This Starter Level Popcorn ELT Rea

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. This level 2 Popcorn ELT Reader is

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. When Peppermint Patty decides to e

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. Based on the blockbuster film this

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. Inventor Flint Lockwood thought he

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. The Smurfs are popular with childr

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. The Smurfs are popular with childr

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. The Smurfs are popular with childr

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. The Smurfs are popular with childr

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. In SpongeBob's New Toy, SpongeBob

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. The Spongebob Squarepants TV serie

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. Mr Bean is popular with children a

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Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. The Spongebob Squarepants TV serie

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. In Underwater Friends, SpongeBob S

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. The Spongebob Squarepants TV serie

Extensive reading is essential for improving fluency and there is a real need in the ELT classroom for contemporary, low-level reading material for younger learners. Mr Bean is popular with children a