Reckon JS

A lightweight string interpolation library for JavaScript.

What is it?

Reckon JS is a simple library that enables using template strings in JavaScript (Browser or NodeJS).

Below are simple examples of how Reckon JS can be used:

How it works?

In Browser

Sample Data:

var scope = {
    fullName: "John Doe",
    age: 20,
    ageNextYear: function() {
        return this.age+1;
    }
};

Reckon via string prototype:

/*  */
var introduction = "My name is {{fullName}}, and next year, I will turn {{ageNextYear}}";
introduction = introduction.reckon(scope);
// My name is John, and next year, I will turn 21

Reckon via JS function: var introduction = "My name is {{fullName}}, and next year, I will turn {{ageNextYear}}"; introduction = reckon({text: introduction, scope: scope}); //returns a reckon object that can be output as string // My name is John, and next year, I will turn 21

In NodeJS

npm install reckonjs

Sample Data:

var reckon = require('reckonjs');
var scope = {
    fullName: "John Doe",
    age: 20,
    ageNextYear: function() {
        return this.age+1;
    }
};

Reckon via JS function: var introduction = "My name is {{fullName}}, and next year, I will turn {{ageNextYear}}"; introduction = reckon({text: introduction, scope: scope}); //returns a reckon object that can be output as string // My name is John, and next year, I will turn 21

Other Settings

Escaping strings:

Strings enclosed between {% and %} are not interpolated.

"My name is {% {{fullName}} %}".reckon(scope);
// My name is {{fullName}}

Custom delimiters:

var config = {
    delimStart: '<<',
    delimEnd: '>>'
}
var introduction = "My name is <<fullName>>".reckon(scope);
reckon().applyConfig(config).compile({text: introduction, scope: myScope});

Contribution

ReckonJS is created by @ritenv. Contributions are open and welcome. For any issues, please raise it in the issues section and feel free to send pull requests to fix them.