A basic set implemented in raw JavaScript. Why? For fun.
// The default comparator handles numbers and strings
var set1 = new Set();
// Provide a custom comparator
var set2 = new Set(function(el1, el2) {
// Comparator should return -1, 0, or 1
});
// Can chain methods
set1
.add(1)
.add(2)
.add(3)
.remove(2)
.remove(1);
// All available methods
set1.add(4);
set1.contains(2); // return bool
set1.remove(2);
set1.size() //return int
set1.each(function(el) {
console.log(el);
});
// Contains, remove, and add can take an optional second paramater defining a
// an at runtime comparator (won't replace the comparator provided in the constructor)
set1.add(4, function(el1, el2) {
return 0;
});##Running the Tests Node.js is required to run the unit tests. After installing Node, install the local packages with:
git clone https://github.com/blittle/jsset.git
cd jsset
npm install
Make sure karma is installed:
npm install -g karma-cli
Run the tests!
karma start