Leaflet.org

Replacing a substring of text within a larger string has always been misleading in JavaScript. I wrote Replace All Occurrences of a String in JavaScript years ago and it’s still one of my most read articles. The confusion lies in that replace only replaces the first occurrence of a substring, not all occurrences. For example: 'yayayayayaya'.replace('ya', 'na'); // nayayayayaya To replace all instances of a substring, you’ve needed to use a regular expression: 'yayayayayaya'.replace(/ya/g, 'na'); // nananananana Using regular expressions is certainly powerful but let’s be honest — oftentimes we simply want to replace all instances of a simple substring that shouldn’t... more →