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How to use LRUCache method in Best

Best JavaScript code snippet using best

lrucache.test.js

Source:lrucache.test.js

1goog.provide('ol.test.LRUCache');2goog.require('ol.structs.LRUCache');3describe('ol.structs.LRUCache', function() {4  var lruCache;5  function fillLRUCache(lruCache) {6    lruCache.set('a', 0);7    lruCache.set('b', 1);8    lruCache.set('c', 2);9    lruCache.set('d', 3);10  }11  beforeEach(function() {12    lruCache = new ol.structs.LRUCache();13  });14  describe('empty cache', function() {15    it('has size zero', function() {16      expect(lruCache.getCount()).to.eql(0);17    });18    it('has no keys', function() {19      expect(lruCache.getKeys()).to.eql([]);20    });21    it('has no values', function() {22      expect(lruCache.getValues()).to.eql([]);23    });24  });25  describe('populating', function() {26    it('returns the correct size', function() {27      fillLRUCache(lruCache);28      expect(lruCache.getCount()).to.eql(4);29    });30    it('contains the correct keys in the correct order', function() {31      fillLRUCache(lruCache);32      expect(lruCache.getKeys()).to.eql(['d', 'c', 'b', 'a']);33    });34    it('contains the correct values in the correct order', function() {35      fillLRUCache(lruCache);36      expect(lruCache.getValues()).to.eql([3, 2, 1, 0]);37    });38    it('reports which keys are contained', function() {39      fillLRUCache(lruCache);40      expect(lruCache.containsKey('a')).to.be.ok();41      expect(lruCache.containsKey('b')).to.be.ok();42      expect(lruCache.containsKey('c')).to.be.ok();43      expect(lruCache.containsKey('d')).to.be.ok();44      expect(lruCache.containsKey('e')).to.not.be();45    });46  });47  describe('getting the oldest key', function() {48    it('moves the key to newest position', function() {49      fillLRUCache(lruCache);50      lruCache.get('a');51      expect(lruCache.getCount()).to.eql(4);52      expect(lruCache.getKeys()).to.eql(['a', 'd', 'c', 'b']);53      expect(lruCache.getValues()).to.eql([0, 3, 2, 1]);54    });55  });56  describe('getting a key in the middle', function() {57    it('moves the key to newest position', function() {58      fillLRUCache(lruCache);59      lruCache.get('b');60      expect(lruCache.getCount()).to.eql(4);61      expect(lruCache.getKeys()).to.eql(['b', 'd', 'c', 'a']);62      expect(lruCache.getValues()).to.eql([1, 3, 2, 0]);63    });64  });65  describe('getting the newest key', function() {66    it('maintains the key to newest position', function() {67      fillLRUCache(lruCache);68      lruCache.get('d');69      expect(lruCache.getCount()).to.eql(4);70      expect(lruCache.getKeys()).to.eql(['d', 'c', 'b', 'a']);71      expect(lruCache.getValues()).to.eql([3, 2, 1, 0]);72    });73  });74  describe('replacing value of a key', function() {75    it('moves the key to newest position', function() {76      fillLRUCache(lruCache);77      lruCache.replace('b', 4);78      expect(lruCache.getCount()).to.eql(4);79      expect(lruCache.getKeys()).to.eql(['b', 'd', 'c', 'a']);80      expect(lruCache.getValues()).to.eql([4, 3, 2, 0]);81    });82  });83  describe('setting a new value', function() {84    it('adds it as the newest value', function() {85      fillLRUCache(lruCache);86      lruCache.set('e', 4);87      expect(lruCache.getKeys()).to.eql(['e', 'd', 'c', 'b', 'a']);88      expect(lruCache.getValues()).to.eql([4, 3, 2, 1, 0]);89    });90  });91  describe('setting an existing value', function() {92    it('raises an exception', function() {93      fillLRUCache(lruCache);94      expect(function() {95        lruCache.set('a', 0);96      }).to.throwException();97    });98  });99  describe('disallowed keys', function() {100    it('setting raises an exception', function() {101      expect(function() {102        lruCache.set('constructor', 0);103      }).to.throwException();104      expect(function() {105        lruCache.set('hasOwnProperty', 0);106      }).to.throwException();107      expect(function() {108        lruCache.set('isPrototypeOf', 0);109      }).to.throwException();110      expect(function() {111        lruCache.set('propertyIsEnumerable', 0);112      }).to.throwException();113      expect(function() {114        lruCache.set('toLocaleString', 0);115      }).to.throwException();116      expect(function() {117        lruCache.set('toString', 0);118      }).to.throwException();119      expect(function() {120        lruCache.set('valueOf', 0);121      }).to.throwException();122    });123    it('getting returns false', function() {124      expect(lruCache.containsKey('constructor')).to.not.be();125      expect(lruCache.containsKey('hasOwnProperty')).to.not.be();126      expect(lruCache.containsKey('isPrototypeOf')).to.not.be();127      expect(lruCache.containsKey('propertyIsEnumerable')).to.not.be();128      expect(lruCache.containsKey('toLocaleString')).to.not.be();129      expect(lruCache.containsKey('toString')).to.not.be();130      expect(lruCache.containsKey('valueOf')).to.not.be();131    });132  });133  describe('popping a value', function() {134    it('returns the least-recent-used value', function() {135      fillLRUCache(lruCache);136      expect(lruCache.pop()).to.eql(0);137      expect(lruCache.getCount()).to.eql(3);138      expect(lruCache.containsKey('a')).to.not.be();139      expect(lruCache.pop()).to.eql(1);140      expect(lruCache.getCount()).to.eql(2);141      expect(lruCache.containsKey('b')).to.not.be();142      expect(lruCache.pop()).to.eql(2);143      expect(lruCache.getCount()).to.eql(1);144      expect(lruCache.containsKey('c')).to.not.be();145      expect(lruCache.pop()).to.eql(3);146      expect(lruCache.getCount()).to.eql(0);147      expect(lruCache.containsKey('d')).to.not.be();148    });149  });150  describe('peeking at the last value', function() {151    it('returns the last key', function() {152      fillLRUCache(lruCache);153      expect(lruCache.peekLast()).to.eql(0);154    });155    it('throws an exception when the cache is empty', function() {156      expect(function() {157        lruCache.peekLast();158      }).to.throwException();159    });160  });161  describe('peeking at the last key', function() {162    it('returns the last key', function() {163      fillLRUCache(lruCache);164      expect(lruCache.peekLastKey()).to.eql('a');165    });166    it('throws an exception when the cache is empty', function() {167      expect(function() {168        lruCache.peekLastKey();169      }).to.throwException();170    });171  });172  describe('clearing the cache', function() {173    it('clears the cache', function() {174      fillLRUCache(lruCache);175      lruCache.clear();176      expect(lruCache.getCount()).to.eql(0);177      expect(lruCache.getKeys()).to.eql([]);178      expect(lruCache.getValues()).to.eql([]);179    });180  });...

Using AI Code Generation

1var LRUCache = require('./LRUCache.js');2var cache = new LRUCache(3);3cache.put(1, 1);4cache.put(2, 2);5cache.put(3, 3);6cache.put(4, 4);7cache.get(4);8cache.get(3);9cache.get(2);10cache.get(1);11cache.put(5, 5);12cache.get(1);13cache.get(2);14cache.get(3);15cache.get(4);16cache.get(5);

Using AI Code Generation

1var LRUCache = require('./LRUCache.js');2var cache = new LRUCache(2);3cache.set(1, 1);4cache.set(2, 2);5var LRUCache = function(capacity) {6    this.capacity = capacity;7    this.map = {};8    this.queue = [];9};10 * @param {number} key11 * @returns {number}12LRUCache.prototype.get = function(key) {13    if(this.map[key] === undefined) {14        return -1;15    }16    var index = this.queue.indexOf(key);17    this.queue.splice(index, 1);18    this.queue.push(key);19    return this.map[key];20};21 * @param {number} key22 * @param {number} value23 * @returns {void}24LRUCache.prototype.set = function(key, value) {25    if(this.map[key] === undefined) {26        if(this.queue.length === this.capacity) {27            var first = this.queue.shift();28            delete this.map[first];29        }30    } else {31        var index = this.queue.indexOf(key);32        this.queue.splice(index, 1);33    }34    this.map[key] = value;35    this.queue.push(key);36};

Using AI Code Generation

1var LRUCache = require('./LRUCache.js');2var lruCache = new LRUCache(2);3lruCache.set(1,1);4lruCache.set(2,2);5console.log(lruCache.get(1));6lruCache.set(3,3);7console.log(lruCache.get(2));8lruCache.set(4,4);9console.log(lruCache.get(1));10console.log(lruCache.get(3));11console.log(lruCache.get(4));

Using AI Code Generation

1const LRUCache = require('./LRUCache.js');2let cache = new LRUCache(3);3cache.set(1, 1);4cache.set(2, 2);5cache.set(3, 3);6console.log(cache.get(1));7console.log(cache.get(2));8console.log(cache.get(3));9cache.set(4, 4);10console.log(cache.get(1));11console.log(cache.get(2));12console.log(cache.get(3));13console.log(cache.get(4));14class LRUCache {15  constructor(capacity) {16    this.capacity = capacity;17    this.cache = new Map();18  }19  get(key) {20    if (this.cache.has(key)) {21      let temp = this.cache.get(key);22      this.cache.delete(key);23      this.cache.set(key, temp);24      return temp;25    } else {26      return -1;27    }28  }29  set(key, value) {30    if (this.cache.has(key)) {31      this.cache.delete(key);32    } else if (this.cache.size >= this.capacity) {33      this.cache.delete(this.cache.keys().next().value);34    }35    this.cache.set(key, value);36  }37}38module.exports = LRUCache;39const LRUCache = require('./LRUCache.js');40let cache = new LRUCache(2);41cache.set(2, 1);42cache.set(1, 1);43cache.set(2, 3);44cache.set(4, 1);45console.log(cache.get(1));46console.log(cache.get(2));47class LRUCache {48  constructor(capacity) {49    this.capacity = capacity;50    this.cache = new Map();51  }52  get(key) {53    if (this.cache.has(key)) {54      let temp = this.cache.get(key);55      this.cache.delete(key);56      this.cache.set(key, temp);57      return temp;58    } else {59      return -1;60    }61  }62  set(key, value) {63    if (this.cache.has(key)) {

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