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Optional chaining

Optional chaining

#optional-chaining

0 followers·41 articles

Optional chaining

#optional-chaining·0 followers·41 articles

Optional chaining

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blog.programwithjr.com·Jan 05, 2025

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Optionals in Java

Introduction Optional is a class introduced in Java 8 to handle null values in order to avoid the dreadful NullPointerException (NPE). It is a wrapper class that can be used to represent a value that may be null or not. Before Java 8, developers had...

Optionals in Java

Discuss·25 reads

Lim Woojae

jaylog.hashnode.dev·Nov 17, 2024

Nov 17, 2024

[React.js] Uncaught TypeError: Cannot read properties of undefined (reading 'map')

About Error When I execute this react code, <div id={id} className="row__posters"> {movies.length > 0 ? ( movies.map((movie) => { return ( <SwiperSlide> <img key={movie.id} style={{ padding: "25px...

[React.js] Uncaught TypeError: Cannot read properties of undefined (reading 'map')

Discuss·7 reads

Ajat Darojat

ajatdarojat45.id·Jul 17, 2024

Jul 17, 2024

Cara Menggunakan Optional Chaining di Javascript

Konsep Optional Chaining (?.) yang baru saja diperkenalkan di Javascript ES2020. Versi baru dari Javascript membawa peningkatan pada implementasi saat ini dan membuat hidup kita lebih mudah sebagai developer. Kalian bisa cek Spesifikasi Bahasa ECMAC...

Cara Menggunakan Optional Chaining di Javascript

Discuss·20 reads

Maksim Martianov

Maksim Martianov

martianov.dev·Jul 04, 2024

Jul 04, 2024

Enhancing Golang with Scala-Style Option Handling for Safer Code

As a developer and a fan of Scala and functional languages I really like to have an ability to be able to handle optional or nullable objects safely and be able to chain them to something new. Standard way to handle them in Golang is to handle them i...

Enhancing Golang with Scala-Style Option Handling for Safer Code

Discuss·23 reads

Mikey Nichols

journeytocode.io·Jun 30, 2024

Jun 30, 2024

Nullish Coalescing, Optional Chaining, and BigInts

JavaScript's evolution continues to bring us powerful features that make our code more robust and readable. Let's dive into some of the most impactful additions from ES11 (ECMAScript 2020) and ES12 (ECMAScript 2021) that are transforming how we write...

Nullish Coalescing, Optional Chaining, and BigInts

Discuss·1 read

JavaScript Evolution: From Scripting Language to Modern Development Platform

aryan sharma

aryansharma.hashnode.dev·Jun 23, 2024

Jun 23, 2024

Optional chaining in JavaScript

Hey Welcome Techies👋🏼 Hello everyone, my name is Aryan Sharma, and I hope you're all doing well. I'm thrilled to begin this JavaScript blog on Transpilers and Pollyfills for absolute beginners. You can find my other blogs on JavaScripthere↗️ Optio...

Optional chaining in JavaScript

Discuss·10 likes·40 reads

Optional chaining

Akash Satpute

akashblogss.hashnode.dev·Jun 07, 2024

Jun 07, 2024

Effective JavaScript Validation: Using Chaining, some, and trim method

Validating User Input in JavaScript: Ensuring All Fields Are Filled In web development, ensuring that all required fields are filled out correctly by the user is a crucial step. Let's explore how to perform this validation in JavaScript using a conci...

Effective JavaScript Validation: Using Chaining, some, and trim method

Discuss·20 likes·17 reads

Sunil Kumar Saini

Sunil Kumar Saini

sunilsaini.hashnode.dev·Apr 05, 2024

Apr 05, 2024

Optional chaining in JavaScript

Optional chaining is a feature in JavaScript to simplify accessing properties or calling methods deeply nested within an object structure, especially when dealing with potentially nullable or undefined intermediate properties. It's denoted by the que...

Discuss·10 likes·10 reads

decpk

decpk.hashnode.dev·Mar 23, 2024

Mar 23, 2024

Optional chaining in depth

TLDR; Optional chaining (?.) prevents runtime errors when accessing properties or methods of potentially null or undefined objects by short-circuiting the expression and returning undefined instead. It's an abstraction over null or undefined checks a...

Optional chaining in depth

Discuss·10 likes·11 reads

Yuvraj Singh

yuvrajsingh.hashnode.dev·Mar 18, 2024

Mar 18, 2024

Demystifying the "Cannot Read Properties of Undefined/Null" Error in JavaScript

Introduction JavaScript, as a versatile and dynamic language, empowers developers to create powerful web applications. However, even seasoned developers encounter the infamous "Cannot Read Properties of Undefined/Null" error. In this blog post, we'll...

Demystifying the "Cannot Read Properties of Undefined/Null" Error in JavaScript

Discuss·10 likes·22 reads

Object wrappers