hat v0.0.3
hat
Generate random IDs and avoid collisions.
examples
hat
var hat = require('hat');
var id = hat();
console.log(id);
output:
0c82a54f22f775a3ed8b97b2dea74036
rack
var hat = require('hat');
var rack = hat.rack();
console.log(rack());
console.log(rack());
output:
1c24171393dc5de04ffcb21f1182ab28
fabe2323acc1b559dee43d4a1e16cbeb
methods
var hat = require('hat');
hat(bits=128, base=16)
Generate a random ID string with bits
of data in a base
.
Leading zeros are appended such that all outputs for a given number of bits have equal length.
var rack = hat.rack(bits=128, base=16, expandBy)
Make a new hat rack. Call rack()
repeatedly to generate new IDs which are
checked for collisions.
If expandBy
is specified, increment bits
by this amount if too many
collisions occur. If expandBy
isn't specified, rack()
will throw if too many
collisions occur during generation.
Optionally call var id = rack(data)
to store data
at the new ID.
You can get the data out again with rack.get(id)
and set the data with
rack.set(id, value)
.
how to make a hat
First you will need a large square of cloth or paper. These materials work well:
- large napkin
- newspaper
If you find yourself at a fancy restaurant, large napkins are in abundant supply.
Tie a knot in each corner. Place the hat on your head and enjoy!