Summary

To identify if a value is technically an error, developers often rely on the JavaScript `instanceof` operator when checking error objects. While this function is a reliable method to detect type mismatches in code, it can sometimes fail if the object lacks a `constructor` property. When this happens, the system may return a false result, rendering the check ineffective even when the exception has actually occurred. Therefore, developers need to verify whether the value is a subclass of the specific error class before relying solely on this check. This requires careful testing to ensure robustness across all possible error scenarios, as some built-in or custom error implementations might not adhere to standard type definitions strictly.

Title

Matt Smith - Modern Web Engineering, Front-End First

Description

Matt Smith is a Maine-based software engineer who gives deep dives into modern front-end development — CSS, JavaScript, React, TypeScript, and the evolving patterns shaping the web.

Keywords

read, lift, state, views, native, time, error, matt, smith, module, works, skip, main, content, contact, modern, engineering

NS Lookup

A 185.199.108.153

Dates

Created 2026-04-14

Updated 2026-04-15

Summarized 2026-04-16