An explanation of JSON.parse() Error Messages and helps to identify exactly what the problem is. One of the most widely used formats to store and transfer data among applications is JSON. It is used by JavaScript developers to interact with the APIs, to read configuration files, to process form submissions and to handle structured information….
User-generated HTML is common in modern web applications. Users may write comments, publish blog posts, create profiles, submit reviews, or format messages using rich-text editors. JavaScript makes it easy to display this content on a webpage, but rendering HTML that comes from users can introduce serious security risks if it is not handled correctly. One…
Combining two JSON objects together is a typical assignment in JavaScript application development. Tableau offers several different methods for merging two objects together while preserving existing data, whether it be API responses, user settings, application configuration, or stored data. The problem is that a plain old merge can cause the existing values to be overwritten,…
HTML Special Characters can create strange issues if used to display user input, when used to insert text to HTML or build web applications with user input. Special characters like <, >, &, and the quotation marks have special meaning in HTML; if these characters are not used properly, they can break your HTML and/or…
In web development, URLs are a standard aspect, and they also can contain risky characters and symbols that aren’t generally readily available. You may have noticed that some characters become oddly-looking codes when you try to add some spaces or accented letters or even put a Chinese character or anything else into a URL if…
In this case it’s a problem very common in JavaScript development – double-encoded URLs and broken query strings. These can result in incorrect search terms, failed API requests and unexpected query value returns. Sometimes a white space in a search query becomes %2520, an ampersand can get split a value into more parameters. Most of…