Function invariant

docs/assets/js/index.js:50512–50535

(condition, format, a, b, c, d, e, f)

	 */

	var invariant = function invariant(condition, format, a, b, c, d, e, f) {
	  if (false) {
	    if (format === undefined) {
	      throw new Error('invariant requires an error message argument');
	    }
	  }

	  if (!condition) {
	    var error;
	    if (format === undefined) {
	      error = new Error('Minified exception occurred; use the non-minified dev environment ' + 'for the full error message and additional helpful warnings.');
	    } else {
	      var args = [a, b, c, d, e, f];
	      var argIndex = 0;
	      error = new Error(format.replace(/%s/g, function () {
	        return args[argIndex++];
	      }));
	      error.name = 'Invariant Violation';
	    }

	    error.framesToPop = 1; // we don't care about invariant's own frame
	    throw error;
	  }
	};

	module.exports = invariant;