{ "version": 3, "sources": ["src/app/shared/data-structures/stack.ts"], "sourcesContent": ["export class Stack {\n items: T[];\n \n constructor() {\n this.items = [];\n }\n \n isEmpty() {\n return this.items.length === 0;\n }\n \n peek() {\n if (!this.isEmpty()) {\n return this.items[this.items.length - 1];\n }\n return undefined;\n }\n \n pop() {\n if (this.isEmpty()) {\n return undefined;\n }\n return this.items.pop();\n }\n \n push(item: T) {\n this.items.push(item);\n }\n }"], "mappings": "AAAM,IAAOA,EAAP,KAAY,CAGdC,aAAA,CACE,KAAKC,MAAQ,CAAA,CACf,CAEAC,SAAO,CACL,OAAO,KAAKD,MAAME,SAAW,CAC/B,CAEAC,MAAI,CACF,GAAI,CAAC,KAAKF,QAAO,EACf,OAAO,KAAKD,MAAM,KAAKA,MAAME,OAAS,CAAC,CAG3C,CAEAE,KAAG,CACD,GAAI,MAAKH,QAAO,EAGhB,OAAO,KAAKD,MAAMI,IAAG,CACvB,CAEAC,KAAKC,EAAO,CACV,KAAKN,MAAMK,KAAKC,CAAI,CACtB", "names": ["Stack", "constructor", "items", "isEmpty", "length", "peek", "pop", "push", "item"] }