generate a (pseudo-)random number
npm install random-number
var rn = require('random-number');
rn(); // sample output → 0.704848874360323 # yes, this is just Math.random(), but it has some optionsthe exported function takes an option object with 3 meaningful properties
min: smallest possible value to return. defaults to 0 or max - 1 if max is definedmax: largest possible value to return. defaults to 1 or min + 1 if min is definedinteger: do you want whole numbers to be returned, or not. defaults to false
- all three
// this is the functionality i like the most
var rn = require('random-number');
var options = {
min: -1000
, max: 1000
, integer: true
}
rn(options) // example outputs → -187, 636If you need the same (or almost the same settings many time) you can create a generator instead of passing the options over and over again
var rn = require('random-number');
var gen = rn.generator({
min: -1000
, max: 1000
, integer: true
})
gen() // example outputs → -350generator( min, max, integer) - all arguments are optional:
var rn = require('random-number');
var gen = rn.generator({
min: -1000
, max: 1000
, integer: true
})
gen(500) // example outputs → 735
gen(500, null, false) // example outputs → 828.6001032683998- only
min
var rn = require('random-number');
var options = {
min: 9874316514 // example input
}
rn(options) // example output → 9874316514.958157- only
max
var rn = require('random-number');
var options = {
max: -9874316514 // example input , yes negative values do work
}
rn(options) // example output → -9874316514.075052- only
integer
var rn = require('random-number');
var options = {
integer: true
}
// this is basically a true/false random generator, with 50% chance to return true
rn(options) // example output → 1minandmax
var rn = require('random-number');
var options = {
// example input , yes negative values do work
min: -10
, max: -1
}
rn(options) // example output → -2.47377512534149minandintegerormaxandinteger
// completely pointless, but whatever
var rn = require('random-number');
var options = {
min: 1000
, integer: true
}
rn(options) // example output → 1001
options = {
max: 1000
, integer: true
}
rn(options) // example output → 999
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