Function fn2method

index.js:105–113

(key, fn)

};

function fn2method(key, fn) {
  if (typeof fn !== 'function') return;
  s.prototype[key] = function() {
    var args = [this._wrapped].concat(Array.prototype.slice.call(arguments));
    var res = fn.apply(null, args);
    // if the result is non-string stop the chain and return the value
    return typeof res === 'string' ? new s(res) : res;
  };
}

// Copy functions to instance methods for chaining
for (var key in s) fn2method(key, s[key]);