Web Front-end
HTML Tutorial
JavaScript code line break: How to handle long string and object attribute access gracefully?
JavaScript code line break: How to handle long string and object attribute access gracefully?
Apr 05, 2025 am 08:03 AM
JavaScript code line breaking best practices
Writing clear and easy to read JavaScript code is crucial. Long lines of code not only affect readability, but also reduce the maintainability of the code. This article will explore the elegant handling of code line breaks in JavaScript, especially for long strings and complex object property access.
Unlike Python that uses backslash \ for line breaks, JavaScript has more flexible line breaks. Directly using backslashes does not work in all cases, such as document.getElementById() method call.
JavaScript mainly provides two new line breaking methods:
Method 1: String literal line wrap
For long strings, you can use a backslash \ to wrap lines inside the string literal. For example:
var ele = document.getElementById("This is a very long ID\
in the landing page").innerText;
This method is concise and clear, and is suitable for splitting long strings into multiple lines.
Method 2: Expression line break
A more general method is to wrap lines before and after the operators of the expression to improve the readability of the code. For example:
var ele = document
.getElementById("This is a very long ID in the landing page")
.innerText;
This method decomposes long expressions into multiple lines, with one method call per line, clearly showing the code logic. It is especially suitable for complex object property access or method chain calls.
Best Practice Recommendations:
- Select the appropriate newline location: Break lines at logical breakpoints, such as between method calls or before and after operators, to avoid affecting code execution.
- Keep consistency: Maintain a consistent code style throughout the project, improving code readability and maintainability.
- Using code formatting tools: Use code formatting tools (such as Prettier) to automatically format code to ensure consistency in code style.
By using the above methods reasonably, you can write clearer and easier to maintain JavaScript code. Remember that the readability of the code is a key factor in high-quality code.
The above is the detailed content of JavaScript code line break: How to handle long string and object attribute access gracefully?. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undress AI Tool
Undress images for free
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
How to download the Binance official app Binance Exchange app download link to get
Aug 04, 2025 pm 11:21 PM
As the internationally leading blockchain digital asset trading platform, Binance provides users with a safe and convenient trading experience. Its official app integrates multiple core functions such as market viewing, asset management, currency trading and fiat currency trading.
Ouyi Exchange APP Android version v6.132.0 Ouyi APP official website download and installation guide 2025
Aug 04, 2025 pm 11:18 PM
OKX is a world-renowned comprehensive digital asset service platform, providing users with diversified products and services including spot, contracts, options, etc. With its smooth operation experience and powerful function integration, its official APP has become a common tool for many digital asset users.
Binance official app download latest link Binance exchange app installation portal
Aug 04, 2025 pm 11:24 PM
Binance is a world-renowned digital asset trading platform, providing users with secure, stable and rich cryptocurrency trading services. Its app is simple to design and powerful, supporting a variety of transaction types and asset management tools.
How to create a virtual environment in Python
Aug 05, 2025 pm 01:05 PM
To create a Python virtual environment, you can use the venv module. The steps are: 1. Enter the project directory to execute the python-mvenvenv environment to create the environment; 2. Use sourceenv/bin/activate to Mac/Linux and env\Scripts\activate to Windows; 3. Use the pipinstall installation package, pipfreeze>requirements.txt to export dependencies; 4. Be careful to avoid submitting the virtual environment to Git, and confirm that it is in the correct environment during installation. Virtual environments can isolate project dependencies to prevent conflicts, especially suitable for multi-project development, and editors such as PyCharm or VSCode are also
Binance official app latest official website entrance Binance exchange app download address
Aug 04, 2025 pm 11:27 PM
Binance is one of the world's well-known digital asset trading platforms, providing users with safe, stable and convenient cryptocurrency trading services. Through the Binance App, you can view market conditions, buy, sell and asset management anytime, anywhere.
How to run Python code in Sublime Text
Aug 04, 2025 pm 04:25 PM
EnsurePythonisinstalledandaddedtoPATHbycheckingversioninterminal;2.Savefilewith.pyextension;3.UseCtrl Btorunviadefaultbuildsystem;4.CreateacustombuildsystemifneededbygoingtoTools>BuildSystem>NewBuildSystem,enteringthecorrectcmdforyourPythonvers
What are common strategies for debugging a memory leak in Python?
Aug 06, 2025 pm 01:43 PM
Usetracemalloctotrackmemoryallocationsandidentifyhigh-memorylines;2.Monitorobjectcountswithgcandobjgraphtodetectgrowingobjecttypes;3.Inspectreferencecyclesandlong-livedreferencesusingobjgraph.show_backrefsandcheckforuncollectedcycles;4.Usememory_prof
What is a parabolic SAR indicator? How does SAR indicator work? Comprehensive introduction to SAR indicators
Aug 06, 2025 pm 08:12 PM
Contents Understand the mechanism of parabola SAR The working principle of parabola SAR calculation method and acceleration factor visual representation on trading charts Application of parabola SAR in cryptocurrency markets1. Identify potential trend reversal 2. Determine the best entry and exit points3. Set dynamic stop loss order case study: hypothetical ETH trading scenario Parabola SAR trading signals and interpretation Based on parabola SAR trading execution Combining parabola SAR with other indicators1. Use moving averages to confirm trend 2. Relative strength indicator (RSI) for momentum analysis3. Bollinger bands for volatility analysis Advantages of parabola SAR and limitations Advantages of parabola SAR
