This script is the defacto way to enable use of HTML5 sectioning elements in legacy Internet Explorer.
React JS is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.
In terms of market share, html5shiv is clearly lagging behind, losing to React JS in all segments.
React JS has better usage coverage in more websites categories. Including Computers Electronics & Technology, Science & Education, Community & Society, Games and 20 other categories.
html5shiv hasn't got a lead over React JS in any websites category.
React JS is leading in most countries, including United States, United Kingdom, Canada, France and 161 other countries.
html5shiv is leading in Haiti.