Peter Seliger questions

Peter Seliger answers

• Implementing reactivity in vanilla JS
• Regex - extract all headers from markdown string
• Is there something like Ruby's module for JavaScript
• How to remove object properties with negative values, regardless of depth?
• How to create a String prototype clone and assign custom function to it
• How to extract text from between any given pair of spans?
• How to use common try-catch for processing every given function in Javascript?
• How to merge objects with the same properties into an Array?
• Good Practice: How can I ensure a JavaScript constructor has access to mixin functions?
• How to check if a variable is undefined versus it is undeclared in javascript?