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priv/javascript/lib/range.js
import Erlang from './erlang';
let Range = function(_first, _last){
if (!(this instanceof Range)){
return new Range(_first, _last);
}
this.first = function(){
return _first;
};
this.last = function(){
return _last;
};
let _range = [];
for(let i = _first; i <= _last; i++){
_range.push(i);
}
_range = Object.freeze(_range);
this.value = function(){
return _range;
};
this.length = function(){
return _range.length;
};
return this;
};
Range.__MODULE__ = Erlang.atom('Range');
Range.prototype[Symbol.iterator] = function(){
return this.value()[Symbol.iterator]();
};
Range.new = function (first, last) {
return Range(first, last);
};
Range.range__qmark__ = function (range) {
return range instanceof Range;
};
export default Range;