Tags
#php
#kotlin
#bash
#go
#sql
#rust
#typescript
#html
#java
#python
#files
#utils
#strings
#http
#concurrency
#async
#json
#arrays
#security
#types
#crypto
#database
#dates
#format
Java
Builder Pattern
For objects with many optional parameters, a Builder beats a constructor with 12 args (or a half-initialized object you have to call setters on). Method chaining + a `build()` step that validates.
@admin
Go
strings.Builder — Efficient Concatenation
Building strings with `+` allocates O(n²) memory. `strings.Builder` writes to an internal buffer with a single final allocation — orders of magnitude faster in loops.
Rust
Builder Pattern with Method Chaining
Construct complex objects step-by-step with `self`-returning methods. Type-state can enforce required vs. optional fields at compile time — but the simple version is plenty for most cases.
Kotlin
Type-Safe Builder DSL
`@DslMarker` + lambdas with receivers let you build statically-typed DSLs that look like declarative configuration. The HTML / Gradle Kotlin DSL style.