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Lodash _.escape

Overview

The lodash _.escape method provides a way to escape HTML special characters in a string, making it safe to output user-generated content as HTML without risking injecting malicious code. The method replaces the characters <, >, &, ", and ' with their corresponding HTML entities. For example, "Foo & Bar" would become "Foo &amp; Bar".

The _.escape method can be used in various situations where user-generated content needs to be displayed as HTML, such as displaying comments on a webpage, generating dynamic email templates, or rendering content in a single-page application.

Some common use cases for _.escape include:

  • Rendering user-generated content, such as comments or forum posts, in a webpage or application. This ensures that any code or scripts injected in the content by users do not execute when the page or application is loaded.
  • Generating dynamic email templates that contain user-generated content. By escaping any special characters in the content, email clients are prevented from rendering the email improperly or executing scripts included in the content.
  • Displaying search results that include user-generated content. By escaping any special characters in the content, users can be confident that their search results are safe to view and engage with.

To use the _.escape method in your code, you must first install the lodash library, which can be done using npm or yarn. Once installed, you can import the method in your code and pass a string as an argument to receive the escaped HTML string as output:

import { escape } from 'lodash';

const unsafeString = 'Foo & Bar';
const safeString = escape(unsafeString);

console.log(safeString); // output: 'Foo &amp; Bar'

Overall, the _.escape method is a valuable tool for developers who need to display user-generated content as HTML in a safe and secure manner.