From cc43b1117cb9e3ce8843a8994a2d26e9dff15aff Mon Sep 17 00:00:00 2001 From: 30secondsofcode <30secondsofcode@gmail.com> Date: Mon, 15 Jan 2018 12:03:06 +0000 Subject: [PATCH] Travis build: 1231 --- README.md | 24 ++++++++++++++++++++++++ docs/index.html | 5 ++++- snippets/randomIntArrayInRange.md | 2 +- tag_database | 2 +- 4 files changed, 30 insertions(+), 3 deletions(-) diff --git a/README.md b/README.md index 339fb74f2..c3304e8bd 100644 --- a/README.md +++ b/README.md @@ -229,6 +229,7 @@ average(1, 2, 3); * [`percentile`](#percentile) * [`powerset`](#powerset) * [`primes`](#primes) +* [`randomIntArrayInRange`](#randomintarrayinrange) * [`randomIntegerInRange`](#randomintegerinrange) * [`randomNumberInRange`](#randomnumberinrange) * [`round`](#round) @@ -3504,6 +3505,29 @@ primes(10); // [2,3,5,7]
[⬆ Back to top](#table-of-contents) +### randomIntArrayInRange + +Returns an array of n random integers in the specified range. + +Use `Array.from()` to create an empty array of the specific length, `Math.random()` to generate a random number and map it to the desired range, using `Math.floor()` to make it an integer. + +```js +const randomIntArrayInRange = (min, max, n = 1) => + Array.from({ length: n }, () => Math.floor(Math.random() * (max - min + 1)) + min); +``` + +
+Examples + +```js +randomIntArrayInRange(12, 35, 10); // [ 34, 14, 27, 17, 30, 27, 20, 26, 21, 14 ] +``` + +
+ +
[⬆ Back to top](#table-of-contents) + + ### randomIntegerInRange Returns a random integer in the specified range. diff --git a/docs/index.html b/docs/index.html index e10fc6a25..4b9013c18 100644 --- a/docs/index.html +++ b/docs/index.html @@ -50,7 +50,7 @@ scrollToTop(); } }, false); - }

logo 30 seconds of code Curated collection of useful JavaScript snippets that you can understand in 30 seconds or less.

 

Adapter

call

Given a key and a set of arguments, call them when given a context. Primarily useful in composition.

Use a closure to call a stored key with stored arguments.

const call = (key, ...args) => context => context[key](...args);
+      }
logo 30 seconds of code Curated collection of useful JavaScript snippets that you can understand in 30 seconds or less.
 
Adapter
call
Given a key and a set of arguments, call them when given a context. Primarily useful in composition.
Use a closure to call a stored key with stored arguments.
const call = (key, ...args) => context => context[key](...args);
 
Promise.resolve([1, 2, 3])
   .then(call('map', x => 2 * x))
   .then(console.log); //[ 2, 4, 6 ]
@@ -760,6 +760,9 @@ own individual rating by supplying it as the third argument.
   return arr;
 };
 
primes(10); // [2,3,5,7]
+
randomIntArrayInRange
Returns an array of n random integers in the specified range.
Use Array.from() to create an empty array of the specific length, Math.random() to generate a random number and map it to the desired range, using Math.floor() to make it an integer.
const randomIntArrayInRange = (min, max, n = 1) =>
+  Array.from({ length: n }, () => Math.floor(Math.random() * (max - min + 1)) + min);
+
randomIntArrayInRange(12, 35, 10); // [ 34, 14, 27, 17, 30, 27, 20, 26, 21, 14 ]
 
randomIntegerInRange
Returns a random integer in the specified range.
Use Math.random() to generate a random number and map it to the desired range, using Math.floor() to make it an integer.
const randomIntegerInRange = (min, max) => Math.floor(Math.random() * (max - min + 1)) + min;
 
randomIntegerInRange(0, 5); // 2
 
randomNumberInRange
Returns a random number in the specified range.
Use Math.random() to generate a random value, map it to the desired range using multiplication.
const randomNumberInRange = (min, max) => Math.random() * (max - min) + min;
diff --git a/snippets/randomIntArrayInRange.md b/snippets/randomIntArrayInRange.md
index e9a341843..a8e38cf2f 100644
--- a/snippets/randomIntArrayInRange.md
+++ b/snippets/randomIntArrayInRange.md
@@ -6,7 +6,7 @@ Use `Array.from()` to create an empty array of the specific length, `Math.random
 
 ```js
 const randomIntArrayInRange = (min, max, n = 1) =>
-	Array.from({ length: n }, () => Math.floor(Math.random() * (max - min + 1)) + min);
+  Array.from({ length: n }, () => Math.floor(Math.random() * (max - min + 1)) + min);
 ```
 
 ```js
diff --git a/tag_database b/tag_database
index 087c1364f..257a66fb3 100644
--- a/tag_database
+++ b/tag_database
@@ -140,8 +140,8 @@ pull:array
 pullAtIndex:array
 pullAtValue:array
 randomHexColorCode:utility,random
-randomIntegerInRange:math,utility,random
 randomIntArrayInRange:math,utility,random
+randomIntegerInRange:math,utility,random
 randomNumberInRange:math,utility,random
 readFileLines:node,array,string
 redirect:browser,url