templatestringparser

A package that helps you process template strings against values

Features

• optional configuration of openingbracket and closingbracket
• supports single and multiple brackets like {name} {{ name }} ${name} $(name) <name> <name/> <>name</> etc
• auto trim excess white space between key value and brackets
• parse deeply nested values e.g. {profile.name} {address.street} etc

Usage

First, install the package using npm:

npm install -S templatestringparser

or

yarn add templatestringparser

Package can be used like so:

REPL

$ npm install templatestring
$ node

> console.log(require('templatestringparser')('Hi {name}, Welcome!', {name: 'Dave'}));
Hi Dave, Welcome!

es5

var templateParser = require('templatestringparser')
 
var template = 'Hello {name}, welcome to my Platform!'
console.log(templateParser(template, { name: 'Dave' })) // Hello Dave, Welcome to my Platform!

es6 and later

import templatestringparser as templateParser from 'templatestringparser'
 
const template = 'Hello {name}, welcome to my Platform!'
console.log(templateParser(template, { name: 'Dave' })) // Hello Dave, Welcome to my Platform!

Features in Detail

openingbracket and closingbracket

Jump to Configurations #1

auto trim

Jump to Configurations #2

parse deeply nested values

var tsp = require('templatestringparser')
 
var template = 'Hello {profile.name}, welcome to my {profile.space}!'
template += ' I live at No.{profile.address.street.number} {profile.address.street.name},'
template += ' {profile.address.city}.'
 
var strObj = {
  profile: {
    name: 'Dave',
    space: 'World',
    address: {
      street: {
        number: 1,
        name: 'strictly'
      },
      city: 'boston'
    }
  }
}
 
console.log(tsp(template, strObj)) // Hello Dave, welcome to my World! I live at No.1 strictly, boston.

Configurations

1 openingbracket and closingbracket

By default templatestringparser uses single curly brackets
{ as openingbracket and
} as closingbracket.

To override the default behavior, pass a 3rd argument of OBJECT TYPE specifying the openingbracket and closingbracket

import templatestringparser as tsp from 'templatestringparser'
 
var template = 'Hello ${name}, welcome to my Platform!'
 
var strObj = {
  name: 'Dave'
}
 
var config = {
  openingbracket: '${', // some common examples '{','{{','(','<','<>'
  closingbracket: '}' // some common examples '}','}}',')','>','/>','</>'
}
 
console.log(tsp(template, strObj, config)) // Hello Dave, Welcome to my Platform!

2 trim

The trim configuration will trim excess white space between key value and brackets.
This is enabled by default. Use {trim: false} in configuration to disable auto trimming.

import templatestringparser as tsp from 'templatestringparser'
 
var template = 'Hello {    name  }, welcome to my { space }!'
 
var strObj = {
  name: 'Dave',
  space: 'World'
}
 
var config = {
  trim: true
}
 
console.log(tsp(template, strObj, config)) // Hello Dave, Welcome to my World!

Keeping up to date

• Follow me on Twitter for updates: https://twitter.com/ajalaabdulsamii