zhihu wu - DEV Community

zhihu wu

Sep 21

Why the Same Markdown Renders Differently on GitHub, Dev.to, and Notion

#webdev #github #tutorial #programming

2 min read

zhihu wu

Sep 19

Your JWT Is Not Encrypted - Here's What's Actually Inside It

#security #javascript #webdev #tutorial

2 min read

zhihu wu

Sep 16

Why Your Regex Returns true Then false on the Same Input

#javascript #webdev #programming #tutorial

2 min read

zhihu wu

Sep 14

How Fast Can a GPU Crack Your Password? Let's Do the Math

#security #programming #webdev #productivity

2 min read

zhihu wu

Sep 11

The Contrast Ratio Bug Hiding in Your Color Palette

#webdev #css #a11y #design

2 min read

zhihu wu

Sep 9

Unix Timestamps: The Seconds-vs-Milliseconds Bug That Wastes Hours

#webdev #programming #tutorial

2 min read

zhihu wu

Sep 6

5 Cron Gotchas That Silently Break Your Jobs (and How to Fix Them)

#webdev #programming #tutorial

2 min read

zhihu wu

Sep 4

UUIDv7 vs UUIDv4: Why Time-Sortable IDs Are Winning (and When v4 Is Still Right)

#webdev #programming #tutorial

2 min read

zhihu wu

Sep 1

Why Your JSON Won't Parse: 6 Invisible Character Traps (and How to Fix Them)

#webdev #productivity #tutorial #javascript

2 min read

zhihu wu

Aug 31

How to Compress Images for the Web Without Losing Quality

#webdev #productivity #tutorial

2 min read

zhihu wu

Aug 29

Hashing vs Encryption vs Encoding: The Difference Every Developer Gets Wrong

#webdev #security #tutorial

2 min read

zhihu wu

Aug 26

URL Encoding 101: Why %20 Isn't a Space (and When to Use encodeURIComponent)

#webdev #productivity #tutorial

2 min read

zhihu wu

Aug 24

How Many Pages Is 1000 Words? The 500/250 Rule Every Writer Should Know

#webdev #productivity #tutorial

2 min read

zhihu wu

Aug 21

How Much House Can You Actually Afford? The 28/36 Rule, Explained

#webdev #productivity #tutorial

2 min read

zhihu wu

Aug 19

How to Read a Diff Like a Developer (and Catch Bugs Before They Merge)

#webdev #productivity #tutorial

2 min read

zhihu wu

Aug 16

JSON vs XML in 2026: Why JSON Won (and Where XML Still Matters)

#webdev #programming #tutorial

2 min read

zhihu wu

Aug 14

Base64 Data URIs: When They Help and When They Hurt

#webdev #performance #tutorial

2 min read

zhihu wu

Aug 11

Password Entropy, Explained: Why Length Beats Complexity

#security #webdev #productivity

2 min read

zhihu wu

Aug 9

15-Year vs 30-Year Mortgage: Do the Math Before You Sign

#webdev #productivity #tutorial

2 min read

zhihu wu

Aug 6

The 70% Rule: Finding the Sweet Spot for Web Image Compression

#webdev #performance #tutorial

2 min read

zhihu wu

Aug 4

HSL vs HEX: Why I Moved My Design Tokens to HSL

#css #webdev #design #tutorial

1

2 min read

zhihu wu

Aug 1

3 Markdown Mistakes I Fixed After Previewing My Drafts

#markdown #webdev #tutorial #productivity

2 min read

zhihu wu

Jul 31

5 Developer Writing Tasks That Need More Than Just a Word Count

#webdev #productivity #beginners #tutorial

1

2 min read

zhihu wu

Jul 29

URL Encoding Demystified: encodeURIComponent vs encodeURI

#webdev #javascript #programming #beginners

1

2 min read

zhihu wu

Jul 26

Base64 Decoded: What Actually Happens When You Hit 'Encode'

#webdev #programming #tutorial #beginners

2 min read

zhihu wu

Jul 24

Cron Jobs in 2026: Docker, CI/CD, and Why Your Old crontab Tricks Still Work

#cron #devops #docker #tutorial

2 min read

zhihu wu

Jul 21

3 Regex Patterns That Save Hours of Debugging

#regex #webdev #programming #tutorial

2 min read

zhihu wu

Jul 19

Stop Using 'password123': A Developer's Guide to Strong Passwords

#security #webdev #beginners #programming

2 min read

zhihu wu

Jul 16

5 Signs Your Regex Is Wrong (and How to Spot Them in Seconds)

#regex #javascript #webdev #beginners

1

3 min read

zhihu wu

Jul 14

Stop Uploading Your Images to Random Servers: Compress Locally Instead

#webdev #tutorial #performance #privacy

1

2 min read

zhihu wu

Jul 11

Why UUIDs Belong in Every Developer's Toolbelt (Not Just Your Database)

#webdev #database #programming #tutorial

2 min read

zhihu wu

Jul 9

5 Markdown Tricks That Make Your README Stand Out

#markdown #webdev #tutorial #productivity

2 min read

zhihu wu

Jul 1

3 Times You Need Base64 (and One Time You Definitely Don't)

#webdev #programming #tutorial #security

2 min read

zhihu wu

Jun 24

Your JSON Is Valid... Until It's Not: Common Parse Errors and How to Fix Them

#json #webdev #javascript #tutorial

1

2 min read

zhihu wu

Jun 21

Stop Copy-Pasting Regex You Don't Understand: 5 Patterns Explained

#regex #tutorial #webdev #beginners

3 min read

zhihu wu

Jun 19

Why Your API Calls Break: A Developer's Guide to URL Encoding

#webdev #api #javascript #tutorial

3 min read

zhihu wu

Jun 16

Your Website Images Are Killing Your SEO — Here's How to Fix It

#webdev #seo #performance #tutorial

2 min read

zhihu wu

Jun 14

3 Base64 Tricks Every Developer Should Know

#webdev #javascript #tutorial #programming

2 min read

zhihu wu

Jun 11

3 JSON Formatting Tricks That Save Me Hours Every Week

#webdev #javascript #programming #tutorial

2 min read

zhihu wu

Jun 9

Beyond UUID v4: v7, ULID, and the Future of Unique IDs

#database #webdev #tutorial #programming

2 min read

zhihu wu

Jun 6

Cron Expressions for CI/CD — Beyond Crontab Basics

#devops #cron #tutorial #github

1 min read

zhihu wu

Jun 4

Loan Math for Developers: 4 Levers That Save Thousands

#webdev #tutorial #beginners #productivity

2 min read

zhihu wu

Jun 1

5 Regex Patterns That Will Save You Hours of Debugging

#regex #javascript #webdev #tutorial

2 min read

zhihu wu

May 31

encodeURI vs encodeURIComponent: The JavaScript URL Encoding Trap

#javascript #webdev #programming #tutorial

1

2 min read

zhihu wu

May 29

UUIDs in Practice — When Auto-Increment Falls Short

#database #webdev #tutorial #programming

2 min read

zhihu wu

May 24

How Loan Amortization Actually Works (and How to Save Thousands)

#webdev #beginners #tutorial #productivity

2 min read

zhihu wu

May 21

My 4-Step Regex Debugging Workflow (That Actually Saves Time)

#regex #javascript #debugging #webdev

2 min read

zhihu wu

May 19

5 Markdown Tricks Every Developer Should Know (That Aren't in the Cheat Sheet)

#markdown #github #documentation #webdev

2 min read

zhihu wu

May 16

How Base64 Actually Works (And Why Every Developer Should Know)

#webdev #programming #tutorial #beginners

2 min read

zhihu wu

May 11

6 Regex Patterns Every Developer Should Have Bookmarked

#regex #webdev #javascript #programming

2 min read

zhihu wu

May 10

URL Encoding: The Developer's Swiss Army Knife You're Probably Using Wrong

#webdev #javascript #programming #tutorial

1 min read

zhihu wu

May 9

URL Encoding: The Developer's Swiss Army Knife You're Probably Using Wrong

#webdev #javascript #programming #tutorial

2 min read

Writing Debut