I hereby claim:
- I am rdnsyh on github.
- I am rdnsyh (https://keybase.io/rdnsyh) on keybase.
- I have a public key ASAfeRr3hZBX47Eq7DtrZePbwyBTUIxPNjvJGbRmehaJkgo
To claim this, I am signing this object:
I hereby claim:
To claim this, I am signing this object:
Not all random values are created equal - for security-related code, you need a specific kind of random value.
A summary of this article, if you don't want to read the entire thing:
Math.random()
. There are extremely few cases where Math.random()
is the right answer. Don't use it, unless you've read this entire article, and determined that it's necessary for your case.crypto.getRandomBytes
directly. While it's a CSPRNG, it's easy to bias the result when 'transforming' it, such that the output becomes more predictable.uuid
, specifically the uuid.v4()
method. Avoid node-uuid
- it's not the same package, and doesn't produce reliably secure random values.random-number-csprng
.You should seriously consider reading the entire article, though - it's
//Trying forEach method | |
function filter(array, fn){ | |
var result = []; | |
// TODO: return a new array with only the value that pass the fn test. (meaning the fn returned true) | |
// function logArrayElements(element, index, array) { | |
// if(fn(element)){ | |
// result[index] = element; | |
// } |
function filter(array, fn){ | |
var result = []; | |
// TODO: return a new array with only the value that pass the fn test. (meaning the fn returned true) | |
// for (var i = 0; i < array.length; i++){ | |
// if(fn(array[i])){ | |
// result[i] = array[i]; | |
// } | |
// } | |
// function logArrayElements(element, index, array) { |
function filter(array, fn){ | |
var result = []; | |
// TODO: return a new array with only the value that pass the fn test. (meaning the fn returned true) | |
for (var i = 0; i < array.length; i++){ | |
if(even(array[i])){ | |
result[i] = array[i]; | |
console.log(result); | |
//return result; | |
} | |
console.log(result); |
let items = [ | |
{id: 'a1', name: 'pisang', price: 22}, | |
{id: 'b2', name: 'keju', price: 34}, | |
{id: 'c3', name: 'roti', price: 11}, | |
]; | |
//console.log(items[0]); | |
//var letItems = items;//why do this though? | |
//console.log(Object.keys(items)); | |
//console.log(Object.keys(letItems)); |
let items = [ | |
{id: 'a1', name: 'pisang', price: 22}, | |
{id: 'b2', name: 'keju', price: 34}, | |
{id: 'c3', name: 'roti', price: 11}, | |
]; | |
//console.log(items[0]); | |
var letItems = items;//why do this though? | |
//console.log(Object.keys(items)); | |
//console.log(Object.keys(letItems)); |
let items = [ | |
{id: 'a1', name: 'pisang', price: 22}, | |
{id: 'b2', name: 'keju', price: 34}, | |
{id: 'c3', name: 'roti', price: 11}, | |
]; | |
//console.log(items[0]); | |
var letItems = items;//why do this though? | |
//console.log(Object.keys(items)); | |
//console.log(Object.keys(letItems)); |