Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 | 19481x 19481x 1x 5458x 69829x 1x 10274x 10274x 1x 7591x 1x 7590x 7590x 7081x 7081x 7081x 1x 5224x 1x 5223x 1x 9972x 9972x 9972x 9972x 349x 349x 349x 9972x 1x 39589x 39589x 1948x 1948x | import defined from "./defined.js";
import DeveloperError from "./DeveloperError.js";
/**
* A collection of key-value pairs that is stored as a hash for easy
* lookup but also provides an array for fast iteration.
* @alias AssociativeArray
* @constructor
*/
function AssociativeArray() {
this._array = [];
this._hash = {};
}
Object.defineProperties(AssociativeArray.prototype, {
/**
* Gets the number of items in the collection.
* @memberof AssociativeArray.prototype
*
* @type {number}
*/
length: {
get: function () {
return this._array.length;
},
},
/**
* Gets an unordered array of all values in the collection.
* This is a live array that will automatically reflect the values in the collection,
* it should not be modified directly.
* @memberof AssociativeArray.prototype
*
* @type {Array}
*/
values: {
get: function () {
return this._array;
},
},
});
/**
* Determines if the provided key is in the array.
*
* @param {string|number} key The key to check.
* @returns {boolean} <code>true</code> if the key is in the array, <code>false</code> otherwise.
*/
AssociativeArray.prototype.contains = function (key) {
//>>includeStart('debug', pragmas.debug);
Iif (typeof key !== "string" && typeof key !== "number") {
throw new DeveloperError("key is required to be a string or number.");
}
//>>includeEnd('debug');
return defined(this._hash[key]);
};
/**
* Associates the provided key with the provided value. If the key already
* exists, it is overwritten with the new value.
*
* @param {string|number} key A unique identifier.
* @param {*} value The value to associate with the provided key.
*/
AssociativeArray.prototype.set = function (key, value) {
//>>includeStart('debug', pragmas.debug);
if (typeof key !== "string" && typeof key !== "number") {
throw new DeveloperError("key is required to be a string or number.");
}
//>>includeEnd('debug');
const oldValue = this._hash[key];
if (value !== oldValue) {
this.remove(key);
this._hash[key] = value;
this._array.push(value);
}
};
/**
* Retrieves the value associated with the provided key.
*
* @param {string|number} key The key whose value is to be retrieved.
* @returns {*} The associated value, or undefined if the key does not exist in the collection.
*/
AssociativeArray.prototype.get = function (key) {
//>>includeStart('debug', pragmas.debug);
if (typeof key !== "string" && typeof key !== "number") {
throw new DeveloperError("key is required to be a string or number.");
}
//>>includeEnd('debug');
return this._hash[key];
};
/**
* Removes a key-value pair from the collection.
*
* @param {string|number} key The key to be removed.
* @returns {boolean} True if it was removed, false if the key was not in the collection.
*/
AssociativeArray.prototype.remove = function (key) {
//>>includeStart('debug', pragmas.debug);
Iif (defined(key) && typeof key !== "string" && typeof key !== "number") {
throw new DeveloperError("key is required to be a string or number.");
}
//>>includeEnd('debug');
const value = this._hash[key];
const hasValue = defined(value);
if (hasValue) {
const array = this._array;
array.splice(array.indexOf(value), 1);
delete this._hash[key];
}
return hasValue;
};
/**
* Clears the collection.
*/
AssociativeArray.prototype.removeAll = function () {
const array = this._array;
if (array.length > 0) {
this._hash = {};
array.length = 0;
}
};
export default AssociativeArray;
|