A JavaScript library that breaks strings into their individual user-perceived characters (including emojis!)

A JavaScript library that breaks strings into their individual user-perceived characters. It supports emojis!

INSM tooling measures user-perceived interactivity of a page

Skeleton elements (aka UI Skeletons, Skeleton Screens, Ghost Elements) - UI for improved perceived performance

Visual, usability, interaction, responsiveness, and perceived-performance audit.

AngularJS directive to measure perceived page load time

A tool for measuring perceived differences between images

Remove the last grapheme cluster (i.e., user-perceived character) of a string.

Reverse the grapheme clusters (i.e., user-perceived characters) of a string.

Micro library for optimistic state with rollbacks and race condition handling.

Remove the first grapheme cluster (i.e., user-perceived character) of a string.

Invoke a function for each grapheme cluster (i.e., user-perceived character) in a string.

Return the first grapheme cluster (i.e., user-perceived character) of a string.

React hooks for optimistic state with rollbacks and race condition handling.

Return the last grapheme cluster (i.e., user-perceived character) of a string.

Framework-agnostic skeleton loading placeholders. Auto-generates animated skeletons from your existing markup to improve perceived load time.

Skeleton elements (aka UI Skeletons, Skeleton Screens, Ghost Elements) are representations of UI that will be available (loaded) soon. They are designed to improve perceived performance.

Human perceived color functions base on LAB/LCH color spaces

Prefetch data on hover for better perceived performance

Skeleton elements (aka UI Skeletons, Skeleton Screens, Ghost Elements) are representations of UI that will be available (loaded) soon. They are designed to improve perceived performance.