mobile-dev-environment/src/tools/tracer.js

Stuck in a browser with primitive dev features? Include this in your web app for a basic set of useful features.

// Provide an error and retrieve trace information
module.exports = function tracer(error, type) {
    // Get stack as string
    let stack = error.stack;
    // Get last line of stack
    stack = stack.split("\n")[stack.split("\n").length-1];
    // Break stack into pieces of information
    const pieces = stack.split(":");
    // Get line number
    const lineNumber = pieces[3];
    // Get file path
    const filePath = (pieces[0].split('at ').join('') + ':' + pieces[1]).replace(/ /g, '');
    // Get file name
    const fileName = filePath.replace(/^.*[\\\/]/, '');

    return {
        fileName: fileName.length > 0 ? fileName : 'N/A',
        filePath,
        lineNumber
    };
}