/** gridstack.js 0.6.4 - IE and older browsers Polyfills for this library @preserve*/
Number.isNaN=Number.isNaN||function(r){return"number"==typeof r&&r!=r},Array.prototype.find||Object.defineProperty(Array.prototype,"find",{value:function(r){if(null==this)throw TypeError('"this" is null or not defined');var e=Object(this),t=e.length>>>0;if("function"!=typeof r)throw TypeError("predicate must be a function");for(var n=arguments[1],i=0;i<t;){var o=e[i];if(r.call(n,o,i,e))return o;i++}},configurable:!0,writable:!0}),Array.prototype.findIndex||Object.defineProperty(Array.prototype,"findIndex",{value:function(r){if(null==this)throw new TypeError('"this" is null or not defined');var e=Object(this),t=e.length>>>0;if("function"!=typeof r)throw new TypeError("predicate must be a function");for(var n=arguments[1],i=0;i<t;){var o=e[i];if(r.call(n,o,i,e))return i;i++}return-1},configurable:!0,writable:!0});
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