tryor.js

Give it a function and a default value. tryor will give you back the return value of the function or, in case the function threw an exception, the default value. Works in node and browsers.

Usage

    // do this
    var config = tryor(function() {
        return JSON.parse(userProvidedConfigString);
    }, {});
 
    // instead of
    var config; // or var config = {}; and empty catch
    try {
        config = JSON.parse(userProvidedConfigString);
    } catch (e) {
        config = {};
    }

Works extra well with ES6-style const variables.

Installation

Node

Install using npm

npm install tryor

var tryor = require("tryor");

Browser

Clone the repo and include it in a script tag

git clone https://github.com/olov/tryor.git

<script src="tryor/tryor.js"></script>