StringHelper

This method decodes HTML entities and returns the original HTML.

See also encodeHtml.

This method encodes HTML entities and returns a string that can be placed in the document and produce the original text rather than be interpreted as HTML. Using this method with user-entered values prevents those values from executing as HTML (i.e., a cross-site scripting or "XSS" security issue).

See also decodeHtml.

Removes all HTML tags from the passed string and decodes HTML entities.

Parses JSON inside a try-catch block. Returns null if the string could not be parsed.

Stringifies an object inside a try-catch block. Returns null if an exception is encountered.

See JSON.stringify on MDN for more information on the arguments.

Escapes " and \ in CSS attribute selectors, e.g. [data-id="somevalue"]

Usage:

document.querySelector(StringHelper.cssAttributeQuery('data-id', 'id with & \\ chars'))

Escapes special RegExp characters.

Generates a UUID. Uses Crypto.randomUUID() if available, otherwise generates a random UUID using Crypto.getRandomValues().

Converts letters with diacritics to their base letter equivalents. For example, "Ångström" becomes "Angstrom".

This is a tagged template function that performs HTML encoding on replacement values to avoid XSS (Cross-Site Scripting) attacks.

For example:

 eventRenderer(eventRecord) {
     return StringHelper.xss`<span class="${eventRecord.attrib}">${eventRecord.name}</span>`;
 }

Capitalizes the first letter of a string, "myString" -> "MyString".

Makes the first letter of a string lowercase, "MyString" -> "myString".