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A Node.js library implementing a simple StringBuffer, much like the Java class.

Package Exports

  • sb-js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (sb-js) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

sb-js

Purpose

A Node.js library implementing a simple StringBuffer, much like the Java class.

Efficiently uses an Array internally, rather than continually appending Strings.

Examples

Setup

Add sb-js to your project or package.json file:

npm install sb-js

Require sb-js in your code:

StringBuffer = require("sb-js").StringBuffer

Note: this library is now implemented in TypeScript, but these examples are in CoffeeScript. For users of TypeScript, see the declaration file for this library at:

https://github.com/cjoakim/sb-js/blob/master/lib/sb-js.d.ts

StringBuffer

Construct a StringBuffer, optionally provide an initial String value.

Original "snake_case" methods add(), add_line(), newline(), to_string(), as_lines(), and is_empty() are available. Corresponding new "camelCase" methods addLine(), newLine(), toString(), asLines(), and isEmpty() are also available.

sb = new StringBuffer()
sb.is_empty()  -> true
sb.isEmpty()  -> true
sb.to_string() -> ""
sb.toString() -> ""

sb.add("one")
sb.is_empty()  -> false

sb.add(",two")
sb.to_string() -> "one,two"

sb.newline()
sb.add_line("three")
sb.add_line(null)      // null values ignored
sb.addLine(undefined)  // undefined values ignored

sb.to_string() -> "one,two
three
"
sb.as_lines()  -> "["one,two","three",""]"
sb.asLines()  -> "["one,two","three",""]"

sb2 = new StringBuffer("  hello world  ")
sb2.is_empty()  ->  false
sb2.as_lines()  -> "["  hello world  "]"
sb2.to_string() -> "  hello world  "
sb2.to_string(true) -> "hello world"

StringBuffer.VERSION  -> 0.3.0

Test Results

Running "mocha_istanbul:coverage" (mocha_istanbul) task


  StringBuffer
    VERSION number is exposed by the API
      ✓ defines VERSION
    original snake_case API
      ✓ should construct an empty instance with no constructor argument
      ✓ should construct a populated instance with a constructor String argument
      ✓ should implement method 'as_lines'
      ✓ should optionally trim the result of to_string
    new camelCase API
      ✓ should construct an empty instance with no constructor argument
      ✓ should construct a populated instance with a constructor String argument
      ✓ should implement method 'asLines'
      ✓ should optionally trim the result of toString


  9 passing (10ms)

=============================================================================
Writing coverage object [/Users/cjoakim/github/sb-js/coverage/coverage.json]
Writing coverage reports at [/Users/cjoakim/github/sb-js/coverage]
=============================================================================

=============================== Coverage summary ===============================
Statements   : 100% ( 46/46 )
Branches     : 92.86% ( 13/14 )
Functions    : 100% ( 14/14 )
Lines        : 100% ( 46/46 )
================================================================================

Release History

  • 2015-05-02 v0.3.0 Renamed the source to sb-js so as to generate file 'lib/sb-js.d.ts'.
  • 2015-04-22 v0.2.0 Implementation language is now TypeScript. API expanded to both snake_case and camelCase.
  • 2015-01-24 v0.1.1  Changed line endings from "\n" to os.EOL. Replaced jasmine with mocha and istanbul.
  • 2014-11-06 v0.1.0  Initial working version; implemented in CoffeeScript.
  • 2014-11-06   v0.0.1  alpha 1