Javascript HashList

Latest revision as of 12:38, 9 September 2024

[edit] General

This object holds properties distributed by the hash of the property name.
Hash is calculated using the internal Yate String hash algorithm.

This object can be used when a script is holding a large number of values for fast retrieval (faster than the flat regular object properties list).

Data can be stored and retrieved using the common javascript instructions:

var hashList = new Engine.HashList;
// Assign
hashList.prop = 5;
hashList.obj = {a:3};
// Retrieve
var tmp = hashList.prop;
for (var tmp of hashList) {
    // tmp contains values in hash list
}
for (var tmp in hashList) {
    // tmp contains hash list key (property) name
}
// Delete
delete hashList.prop;

[edit] Constructor

• new Engine.HashList([cnt])

Parameters:
cnt Numeric. Number of lists to distribute values. Clamped in interval [1..1024]. Default: 17

For a proper distribution of values cnt should be a prime number.

[edit] Methods

• count()

Return:
The number of elements in list.