lik/ts/lik.objectmap.ts

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import * as plugins from './lik.plugins'
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export interface IObjectmapForEachFunction<T> {
(itemArg: T): void
}
export interface IObjectmapFindFunction<T> {
(itemArg: T): boolean
}
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/**
* allows keeping track of objects
*/
export class Objectmap<T> {
private objectArray: T[] = []
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/**
* returns a new instance
*/
constructor() {
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}
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/**
* add object to Objectmap
*/
add(objectArg: T) {
this.objectArray.push(objectArg)
}
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/**
* like .add but adds an whole array of objects
*/
addArray(objectArrayArg: T[]) {
for (let item of objectArrayArg) {
this.add(item)
}
}
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/**
* check if object is in Objectmap
*/
checkForObject(objectArg: T) {
return this.objectArray.indexOf(objectArg) !== -1
}
/**
* find object
*/
find(findFunction: IObjectmapFindFunction<T>) {
let resultArray = this.objectArray.filter(findFunction)
if (resultArray.length > 0) {
return resultArray[0]
} else {
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return null
}
}
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/**
* finds a specific element and then removes it
*/
findOneAndRemove(findFunction): T {
let foundElement = this.find(findFunction)
if (foundElement) {
this.remove(foundElement)
}
return foundElement
}
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/**
* run function for each item in Objectmap
*/
forEach(functionArg: IObjectmapForEachFunction<T>) {
return this.objectArray.forEach(functionArg)
}
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/**
* gets an object in the Observablemap and removes it, so it can't be retrieved again
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*/
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getOneAndRemove(): T {
return this.objectArray.shift()
}
/**
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* returns a cloned array of all the objects currently in the Objectmap
*/
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getArray() {
return plugins.lodash.cloneDeep(this.objectArray)
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}
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/**
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* check if Objectmap ist empty
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*/
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isEmpty(): boolean {
if (this.objectArray.length === 0) {
return true
} else {
return false
}
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}
/**
* remove object from Objectmap
*/
remove(objectArg: T) {
let replacementArray = []
for (let item of this.objectArray) {
if (item !== objectArg) {
replacementArray.push(item)
}
}
this.objectArray = replacementArray
}
/**
* wipe Objectmap
*/
wipe() {
this.objectArray = []
}
}