Answers for "javascript for range"

install node js ubuntu

sudo apt-get install curl
curl -sL https://deb.nodesource.com/setup_13.x | sudo -E bash -
sudo apt-get install nodejs
# Check node version
node -v 
# v13.9.0
# Also, check the npm version
npm -v 
# 6.13.7

linux install node

sudo apt install nodejs

install node on linux

# It's a good idea to use NVM (Node Version Manager) if you want to install
# Node.js on Linux because it allows you to install many versions of Node
# simultaneously and switch between them easily

# Navigate to desktop to avoid problems with permissions
cd ~/Desktop

# Download the nvm script, but please note that new versions of nvm are
# released as the time pass, so you should always check the following link:
# https://github.com/nvm-sh/nvm#installing-and-updating
# to get updated info
sudo apt install curl && curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash

# You need to check whether nvm has been added to the PATH or not
# So you should execute the command
nvm --version

# IF IT HASN'T BEEN ADDED TO THE PATH, THEN MAKE SURE TO EXECUTE THESE COMMANDS:
export NVM_DIR="$([ -z "${XDG_CONFIG_HOME-}" ] && printf %s "${HOME}/.nvm" || printf %s "${XDG_CONFIG_HOME}/nvm")"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"

# To install the latest version of node, use the command:
nvm install node

# You don't need to worry about npm installation as nvm automatically 
# installs it alongside node

# Please visit nvm github repo for more info: https://github.com/nvm-sh/nvm

range javascript

[...Array(5).keys()];
 => [0, 1, 2, 3, 4]

function range() as range js

function range(start, end) {
	/* generate a range : [start, start+1, ..., end-1, end] */
	var len = end - start + 1;
	var a = new Array(len);
	for (let i = 0; i < len; i++) a[i] = start + i;
	return a;
}

js range

for (i of range(1, 5)) {
    console.log(i);
}
/* Output
 * 1 2 3 4 5 */

[...range(1, 5)] // [1, 2, 3, 4, 5]

javascript create range with a loop

function createRange(min, max) {
    var range = [];
    for (let i = min; i <= max; i++) {
        range.push(i);
    }
    return range;
}

createRange(1, 5)
// => [1, 2, 3, 4, 5]

javascript range

function range(start, stop, step = 1, circularFill = false, map = (value) => value) {
	if (typeof stop === 'undefined') {
		stop = start;
		start = 0;
	}

	if (step > 0 && start >= stop) {
		step = -step;
	}

	if (step < 0 && start <= stop) {
		return [];
	}
	
	let index = start;
	const result = [];
	
	if (circularFill) {
		const size = start + stop;
		for (index; step > 0 ? index < size : index > size; index += step) {
			result.push(map(index % stop));
		}
		return result;
	}
	
	for (index; step > 0 ? index < stop : index > stop; index += step) {
		result.push(map(index));
	}

	return result;
}

// Range examples:

range(8)
// [0, 1, 2, 3, 4, 5, 6, 7]

range(-8)
// [0, -1, -2, -3, -4, -5, -6, -7]

range(25, 30, 2);
// [25, 27, 29]

range(-25, -30, -2);
// [-25, -27, -29]

range(5, 10, 1, true)
// [5, 6, 7, 8, 9, 0, 1, 2, 3, 4]

range(-5, -10, -1, true)
// [-5, -6, -7, -8, -9, -0, -1, -2, -3, -4]

function rangeChars(text, start, stop, step, circularFill, map = (value) => value) {
  start = text.indexOf(start);
  stop = text.indexOf(stop) + 1;
  return range(start, stop, step, circularFill, (i) => {
    return map(text[i]);
  });
}
rangeChars('shooooouuut!!!!', 'o', '!');
// ["o", "o", "o", "o", "o", "u", "u", "u", "t", "!"]

for in range javascript

function* range(start=0, end=null, step=1) {
  if (end == null) {
    end = start;
    start = 0;
  }

  for (let i=start; i < end; i+=step) {
    yield i;
  }
}