angular-bootstrap-md
Version:
<a href="http://mdbootstrap.com/docs/angular/getting-started/download/"><img src="https://mdbootstrap.com/img/Marketing/general/logo/medium/mdb-angular2.png"></a> # Angular Bootstrap with Material Design
235 lines • 24.4 kB
JavaScript
export class LinkedList {
constructor() {
// public length: = 0;
this.length = 0;
this.asArray = [];
// Array methods overriding END
}
getNode(position) {
if (this.length === 0 || position < 0 || position >= this.length) {
throw new Error('Position is out of the list');
}
let current = this.head;
for (let index = 0; index < position; index++) {
current = current.next;
}
return current;
}
createInternalArrayRepresentation() {
const outArray = [];
let current = this.head;
while (current) {
outArray.push(current.value);
current = current.next;
}
this.asArray = outArray;
}
// public get(position: number): T {
get(position) {
if (this.length === 0 || position < 0 || position >= this.length) {
return void 0;
}
let current = this.head;
for (let index = 0; index < position; index++) {
current = current.next;
}
return current.value;
}
add(value, position = this.length) {
if (position < 0 || position > this.length) {
throw new Error('Position is out of the list');
}
const node = {
value: value,
next: undefined,
previous: undefined
};
if (this.length === 0) {
this.head = node;
this.tail = node;
this.current = node;
}
else {
if (position === 0) {
// first node
node.next = this.head;
this.head.previous = node;
this.head = node;
}
else if (position === this.length) {
// last node
this.tail.next = node;
node.previous = this.tail;
this.tail = node;
}
else {
// node in middle
const currentPreviousNode = this.getNode(position - 1);
const currentNextNode = currentPreviousNode.next;
currentPreviousNode.next = node;
currentNextNode.previous = node;
node.previous = currentPreviousNode;
node.next = currentNextNode;
}
}
this.length++;
this.createInternalArrayRepresentation();
}
remove(position = 0) {
if (this.length === 0 || position < 0 || position >= this.length) {
throw new Error('Position is out of the list');
}
if (position === 0) {
// first node
this.head = this.head.next;
if (this.head) {
// there is no second node
this.head.previous = undefined;
}
else {
// there is no second node
this.tail = undefined;
}
}
else if (position === this.length - 1) {
// last node
this.tail = this.tail.previous;
this.tail.next = undefined;
}
else {
// middle node
const removedNode = this.getNode(position);
removedNode.next.previous = removedNode.previous;
removedNode.previous.next = removedNode.next;
}
this.length--;
this.createInternalArrayRepresentation();
}
set(position, value) {
if (this.length === 0 || position < 0 || position >= this.length) {
throw new Error('Position is out of the list');
}
const node = this.getNode(position);
node.value = value;
this.createInternalArrayRepresentation();
}
toArray() {
return this.asArray;
}
findAll(fn) {
let current = this.head;
const result = [];
for (let index = 0; index < this.length; index++) {
if (fn(current.value, index)) {
result.push({ index, value: current.value });
}
current = current.next;
}
return result;
}
// Array methods overriding start
push(...args) {
args.forEach((arg) => {
this.add(arg);
});
return this.length;
}
// public pop(): T {
pop() {
if (this.length === 0) {
return undefined;
}
const last = this.tail;
this.remove(this.length - 1);
return last.value;
}
unshift(...args) {
args.reverse();
args.forEach((arg) => {
this.add(arg, 0);
});
return this.length;
}
// public shift(): T {
shift() {
if (this.length === 0) {
return undefined;
}
const lastItem = this.head.value;
this.remove();
return lastItem;
}
forEach(fn) {
let current = this.head;
for (let index = 0; index < this.length; index++) {
fn(current.value, index);
current = current.next;
}
}
indexOf(value) {
let current = this.head;
let position = 0;
for (let index = 0; index < this.length; index++) {
if (current.value === value) {
position = index;
break;
}
current = current.next;
}
return position;
}
some(fn) {
let current = this.head;
let result = false;
while (current && !result) {
if (fn(current.value)) {
result = true;
break;
}
current = current.next;
}
return result;
}
every(fn) {
let current = this.head;
let result = true;
while (current && result) {
if (!fn(current.value)) {
result = false;
}
current = current.next;
}
return result;
}
toString() {
return '[Linked List]';
}
// public find(fn: any): T {
find(fn) {
let current = this.head;
// let result: T;
let result;
for (let index = 0; index < this.length; index++) {
if (fn(current.value, index)) {
result = current.value;
break;
}
current = current.next;
}
return result;
}
findIndex(fn) {
let current = this.head;
// let result: number;
let result;
for (let index = 0; index < this.length; index++) {
if (fn(current.value, index)) {
result = index;
break;
}
current = current.next;
}
return result;
}
}
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class LinkedList <T> {\n\n  // public length: = 0;\n  public length: any = 0;\n  protected head: any;\n  protected tail: any;\n  protected current: any;\n  protected asArray: T[] = [];\n\n  protected getNode(position: number): any {\n    if (this.length === 0 || position < 0 || position >= this.length) {\n      throw new Error('Position is out of the list');\n    }\n\n    let current = this.head;\n\n    for (let index = 0; index < position; index++) {\n      current = current.next;\n    }\n    return current;\n  }\n\n  protected createInternalArrayRepresentation(): void {\n    const outArray: any[] = [];\n    let current = this.head;\n\n    while (current) {\n      outArray.push(current.value);\n      current = current.next;\n    }\n    this.asArray = outArray;\n  }\n\n  // public get(position: number): T {\n    public get(position: number): T | any {\n    if (this.length === 0 || position < 0 || position >= this.length) {\n      return void 0;\n    }\n\n    let current = this.head;\n\n    for (let index = 0; index < position; index++) {\n      current = current.next;\n    }\n    return current.value;\n  }\n\n  public add(value: T, position: number = this.length): void {\n    if (position < 0 || position > this.length) {\n      throw new Error('Position is out of the list');\n    }\n\n    const node = {\n      value: value as any,\n      next: undefined as any,\n      previous: undefined as any\n    };\n\n    if (this.length === 0) {\n      this.head = node;\n      this.tail = node;\n      this.current = node;\n    } else {\n      if (position === 0) {\n        // first node\n        node.next = this.head;\n        this.head.previous = node;\n        this.head = node;\n      } else if (position === this.length) {\n        // last node\n        this.tail.next = node;\n        node.previous = this.tail;\n        this.tail = node;\n      } else {\n        // node in middle\n        const currentPreviousNode = this.getNode(position - 1);\n        const currentNextNode = currentPreviousNode.next;\n\n        currentPreviousNode.next = node;\n        currentNextNode.previous = node;\n\n        node.previous = currentPreviousNode;\n        node.next = currentNextNode;\n      }\n\n    }\n    this.length++;\n    this.createInternalArrayRepresentation();\n  }\n\n  public remove(position: number = 0): void {\n    if (this.length === 0 || position < 0 || position >= this.length) {\n      throw new Error('Position is out of the list');\n    }\n\n    if (position === 0) {\n      // first node\n      this.head = this.head.next;\n\n      if (this.head) {\n        // there is no second node\n        this.head.previous = undefined;\n      } else {\n        // there is no second node\n        this.tail = undefined;\n      }\n    } else if (position === this.length - 1) {\n      // last node\n      this.tail = this.tail.previous;\n      this.tail.next = undefined;\n    } else {\n      // middle node\n      const removedNode = this.getNode(position);\n      removedNode.next.previous = removedNode.previous;\n      removedNode.previous.next = removedNode.next;\n    }\n\n    this.length--;\n    this.createInternalArrayRepresentation();\n  }\n\n  public set(position: number, value: T): void {\n    if (this.length === 0 || position < 0 || position >= this.length) {\n      throw new Error('Position is out of the list');\n    }\n\n    const node = this.getNode(position);\n    node.value = value;\n    this.createInternalArrayRepresentation();\n  }\n\n  public toArray(): T[] {\n    return this.asArray;\n  }\n\n  public findAll(fn: any): any[] {\n    let current = this.head;\n    const result: any[] = [];\n    for (let index = 0; index < this.length; index++) {\n      if (fn(current.value, index)) {\n        result.push({index, value: current.value});\n      }\n      current = current.next;\n    }\n    return result;\n  }\n  // Array methods overriding start\n  public push(...args: T[]): number {\n    args.forEach((arg: any) => {\n      this.add(arg);\n    });\n    return this.length;\n  }\n\n  // public pop(): T {\n    public pop(): T | any {\n    if (this.length === 0) {\n      return undefined;\n    }\n    const last = this.tail;\n    this.remove(this.length - 1);\n    return last.value;\n  }\n\n  public unshift(...args: T[]): number {\n    args.reverse();\n    args.forEach((arg: any) => {\n      this.add(arg, 0);\n    });\n    return this.length;\n  }\n\n  // public shift(): T {\n    public shift(): T | any {\n    if (this.length === 0) {\n      return undefined;\n    }\n    const lastItem = this.head.value;\n    this.remove();\n    return lastItem;\n  }\n\n  public forEach(fn: any): void {\n    let current = this.head;\n    for (let index = 0; index < this.length; index++) {\n      fn(current.value, index);\n      current = current.next;\n    }\n  }\n\n  public indexOf(value: T): number {\n    let current = this.head;\n    let position = 0;\n\n    for (let index = 0; index < this.length; index++) {\n      if (current.value === value) {\n\n        position = index;\n        break;\n      }\n      current = current.next;\n    }\n    return position;\n  }\n\n  public some(fn: any): boolean {\n    let current = this.head;\n    let result  = false;\n    while (current && !result) {\n      if (fn(current.value)) {\n        result = true;\n        break;\n      }\n      current = current.next;\n    }\n    return result;\n  }\n\n  public every(fn: any): boolean {\n    let current = this.head;\n    let result  = true;\n    while (current && result)  {\n      if (!fn(current.value)) {\n        result = false;\n      }\n      current = current.next;\n    }\n    return result;\n  }\n\n  public toString(): string {\n    return '[Linked List]';\n  }\n\n  // public find(fn: any): T {\n    public find(fn: any): T | any {\n    let current = this.head;\n    // let result: T;\n    let result: T | any;\n    for (let index = 0; index < this.length; index++) {\n      if (fn(current.value, index)) {\n        result = current.value;\n        break;\n      }\n      current = current.next;\n    }\n    return result;\n  }\n\n  public findIndex(fn: any): number {\n    let current = this.head;\n    // let result: number;\n    let result: number | any;\n    for (let index = 0; index < this.length; index++) {\n      if (fn(current.value, index)) {\n        result = index;\n        break;\n      }\n      current = current.next;\n    }\n    return result;\n  }\n\n  // Array methods overriding END\n}\n"]}