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error-stack-parser

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error-stack-parser

Extract meaning from JS Errors


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Package description

What is error-stack-parser?

The error-stack-parser package is a utility for parsing and extracting information from JavaScript Error stacks. It provides a structured way to interpret error stack strings, making it easier to programmatically analyze errors, log them in a more readable format, or display them in user interfaces. It's particularly useful in applications where understanding the context and source of an error is crucial for debugging or error handling.

What are error-stack-parser's main functionalities?

Parsing Error Stacks

This feature allows you to parse the stack property of Error objects into a more structured format. Each element in the returned array represents a frame in the stack trace, with properties such as the function name, file name, line number, and column number. This makes it easier to analyze and display error information programmatically.

const ErrorStackParser = require('error-stack-parser');
const error = new Error('This is a test error');
const stackFrames = ErrorStackParser.parse(error);
console.log(stackFrames);

Other packages similar to error-stack-parser

Readme

Source

error-stack-parser.js - Extract meaning from JS Errors

Build Status Coverage Status GitHub license size with dependencies gzip size module format code of conduct jsDelivr Hits

Simple, cross-browser Error parser. This library parses and extracts function names, URLs, line numbers, and column numbers from the given Error's stack as an Array of StackFrames.

Once you have parsed out StackFrames, you can do much more interesting things. See stacktrace-gps.

Note that in IE9 and earlier, Error objects don't have enough information to extract much of anything. In IE 10, Errors are given a stack once they're thrown.

Browser Support

Sauce Test Status

Usage

ErrorStackParser.parse(new Error('BOOM'));

=> [
        StackFrame({functionName: 'foo', args: [], fileName: 'path/to/file.js', lineNumber: 35, columnNumber: 79, isNative: false, isEval: false}),
        StackFrame({functionName: 'Bar', fileName: 'https://cdn.somewherefast.com/utils.min.js', lineNumber: 1, columnNumber: 832, isNative: false, isEval: false, isConstructor: true}),
        StackFrame(... and so on ...)
   ]

Installation

npm install error-stack-parser
bower install error-stack-parser
https://raw.githubusercontent.com/stacktracejs/error-stack-parser/master/dist/error-stack-parser.min.js

Contributing

Want to be listed as a Contributor? Start with the Contributing Guide!

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Package last updated on 06 Jun 2022

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