js-data-structures-and-algorithms/dist/main.cjs.min.js

Data structures and algorithms implemented in JavaScript

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this.items.push(i),this.length++,i}},{key:"dequeue",value:function(){return this.length?(this.length--,this.items.shift()):null}},{key:"peek",value:function(){return this.items[0]||null}},{key:"isEmpty",value:function(){return 0===this.length}},{key:"size",value:function(){return this.length}},{key:"enumerate",value:function(){return this.items}},{key:"clear",value:function(){return this.length=0,this.items=[],this.items}}]),e}(),k=function(){function e(){t(this,e),this.items=[],this.length=0}return n(e,[{key:"enqueue",value:function(t){return this.items.push(t),this.length++,t}},{key:"dequeue",value:function(){return this.length?(this.length--,this.items.shift()):null}},{key:"peek",value:function(){return this.items[0]||null}},{key:"isEmpty",value:function(){return 0===this.length}},{key:"size",value:function(){return this.length}},{key:"enumerate",value:function(){return this.items}},{key:"clear",value:function(){return this.length=0,this.items=[],this.items}}]),e}(),x=function(){function e(){t(this,e),this.queue=new d}return n(e,[{key:"enqueue",value:function(t){return this.queue.insertAtEnd(t),t}},{key:"dequeue",value:function(){var t=this.queue.getAt(0);return this.queue.deleteFirstNode(),t?t.val:null}},{key:"peek",value:function(){var t=this.queue.getAt(0);return t?t.val:null}},{key:"isEmpty",value:function(){return this.queue.isEmpty()}},{key:"size",value:function(){return this.queue.size()}},{key:"enumerate",value:function(){return this.queue.enumerate()}},{key:"clear",value:function(){return this.queue.clear(),[]}}]),e}(),b=function(){function e(){t(this,e),this.items=[],this.length=0}return n(e,[{key:"push",value:function(t){return this.items.unshift(t),this.length++,t}},{key:"pop",value:function(){return this.length?(this.length--,this.items.shift()):null}},{key:"peek",value:function(){return this.items[0]||null}},{key:"isEmpty",value:function(){return 0===this.length}},{key:"size",value:function(){return this.length}},{key:"enumerate",value:function(){return this.items}},{key:"clear",value:function(){return this.length=0,this.items=[],this.items}}]),e}(),A=function(){function e(){t(this,e),this.stack=new p}return n(e,[{key:"push",value:function(t){return this.stack.insertAtBeginning(t),t}},{key:"pop",value:function(){var t=this.stack.getAt(0);return this.stack.deleteFirstNode(),t?t.val:null}},{key:"peek",value:function(){var t=this.stack.getAt(0);return t?t.val:null}},{key:"isEmpty",value:function(){return this.stack.isEmpty()}},{key:"size",value:function(){return this.stack.size()}},{key:"enumerate",value:function(){return this.stack.enumerate()}},{key:"clear",value:function(){return this.stack.clear(),[]}}]),e}();exports.BinarySearchTree=v,exports.BinarySearchTreeNode=f,exports.DoublyLinkedList=d,exports.DoublyLinkedListNode=g,exports.LinkedList=p,exports.LinkedListNode=y,exports.PriorityQueue=m,exports.Queue=k,exports.QueueFromDoublyLinkedList=x,exports.Set=o,exports.Stack=b,exports.StackFromLinkedList=A,exports.binarySearch=function(t,e,n){if(!(t instanceof Array)||null==e)return-1;for(var i=r(t),o=1,l=0;i.length>0;){var a=Math.floor(i.length/2);if(l+=a,n&&console.log("iteration ".concat(o,": midpoint index: ").concat(l,"; array to search: ").concat(i.join(", "),"; ").concat(e," === ").concat(i[a]," ? ... ").concat(e===i[a],"!")),i[a]===e)return l;i[a]>e?(l-=a,i=i.slice(0,a)):(l+=1,i=i.slice(a+1)),o++}return-1},exports.boyerMooreHorspoolSearch=function(t,e,n){if("string"!=typeof t||"string"!=typeof e)return n&&console.log("bad input, exiting early"),-1;var r=e.length,i=t.length;if(r>i)return n&&console.log("needle is longer than the haystack, exiting early"),-1;for(var o,l=r-1,a={},s=0;s<r;s++)a[e[s]]=l-s;for(var u=0,h=0;i>=r;){for(h=l;t[u+h]===e[h];h--)if(0===h)return u;i-=o=a[t[u+l]]||r,u+=o}return-1},exports.bubbleSort=function(t,e){var n=r(t),i=!1,o=0;e&&console.log("starting array: ".concat(n.join(" ")));do{i=!1,o++;for(var l=0;l<n.length-1;l++)if(n[l]>n[l+1]){var a=n[l];n[l]=n[l+1],n[l+1]=a,i=!0}e&&console.log("iteration ".concat(o,": array: ").concat(n.join(" ")))}while(i);return n},exports.countingSort=function(t,e,n,r){var i=[],o=[],l=e,a=n;if(r&&console.log("starting array: ".concat(t.join(" "))),void 0===l||void 0===a){r&&console.log("getting min and max values of the input array");for(var s=0;s<t.length;s++){var u=t[s];0===s&&(l=u,a=u),u<l&&(l=u),u>a&&(a=u)}}r&&console.log("min value: ".concat(l,"; max value: ").concat(a));for(var h=a-l+1,c=0;c<h;c++)o.push(0);r&&console.log("initialized count array: ".concat(o.join(" ")));for(var f=0;f<t.length;f++){o[t[f]-l]++}r&&console.log("populated count array: ".concat(o.join(" ")));for(var v=0;v<o.length;v++)for(;o[v]>0;)i.push(v+l),o[v]--;return r&&console.log("sorted output array: ".concat(i.join(" "))),i},exports.insertionSort=function(t,e){var n=r(t);e&&console.log("starting array: ".concat(n.join(" ")));for(var i=1;i<n.length;i++){for(var o=n.splice(i,1)[0],l=!1,a=i;a>=1;a--)if(e&&console.log("  comparing ".concat(o," with ").concat(n[a-1])),o>n[a-1]){e&&console.log("    inserting ".concat(o," after ").concat(n[a-1])),n=[].concat(r(n.slice(0,a)),[o],r(n.slice(a))),l=!0;break}l||(e&&console.log("    inserting ".concat(o," at first index")),n=[o].concat(r(n))),e&&console.log("iteration ".concat(i+1,": array: ").concat(n.join(" ")))}return n},exports.intersection=l,exports.linearSearch=function(t,e,n){if(!(t instanceof Array)||null==e)return-1;for(var r=0;r<t.length;r++)if(n&&console.log("iteration ".concat(r+1,": ").concat(e," === ").concat(t[r]," ? ... ").concat(e===t[r],"!")),e===t[r])return r;return-1},exports.mergeSort=function t(e,n){if(n&&console.log("current array: ".concat(e.join(" "))),e.length<2)return n&&console.log("  array only has 0 or 1 items, so nothing to sort!"),e;n&&console.log("  splitting the array down the middle!");var r=Math.floor(e.length/2),i=t(e.slice(0,r),n),o=t(e.slice(r),n);return u(i,o,n)},exports.naiveSearch=function(t,e,n){if("string"!=typeof t||"string"!=typeof e)return n&&console.log("bad input, exiting early"),-1;if(e.length>t.length)return n&&console.log("needle is longer than the haystack, exiting early"),-1;for(var r=0;r<t.length;r++)for(var i=0;i<e.length&&t[r+i]===e[i];i++)if(i===e.length-1)return r;return-1},exports.quickSort=function t(e){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:e.length-1,i=arguments.length>3?arguments[3]:void 0;if(i&&console.log("current array: ".concat(e.join(" "))),e.length<2)return i&&console.log("  array only has 0 or 1 items, so nothing to sort!"),e;var o=c(e,n,r,i);return n<o-1&&t(e,n,o-1,i),o<r&&t(e,o,r,i),e},exports.selectionSort=function(t,e){var n=r(t);e&&console.log("starting array: ".concat(n.join(" ")));for(var i=0;i<n.length-1;i++){for(var o=i,l=i;l<n.length;l++)n[l]<n[o]&&(o=l);var a=n[i];n[i]=n[o],n[o]=a,e&&console.log("iteration ".concat(i+1,": array: ").concat(n.join(" ")))}return n},exports.setDifference=a,exports.symmetricDifference=function(t,e){var n=l(t,e),r=s(t,e);return a(r,n)},exports.union=s;
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