montyr75’s gists

montyr75 / gist:7628003

Last active December 29, 2015 06:19

Synchronously get a line of user input from the command line console (stdin). Using synchronous I/O in the console can greatly simplify your program.

	import "dart:io";

	void main() {
	// get user input using synchronous I/O
	String input = stdin.readLineSync();

	// get user input and convert to lowercase
	String inputLC = stdin.readLineSync().toLowerCase();

	print(input);

montyr75 / gist:7632735

Created November 24, 2013 21:39

Dart factorial function.

	int factorial(int number) {
	int factorialRange(int bottom, int top) {
	if (top == bottom) {
	return bottom;
	}

	return top * factorialRange(bottom, top - 1);
	}

	return factorialRange(1, number);

montyr75 / gist:7632761

Created November 24, 2013 21:43

A Dart function that returns a List of all possible permutations of a given string.

	List<String> findAllPermutations(String source) {
	List allPermutations = [];

	void permutate(List list, int cursor) {
	// when the cursor gets this far, we've found one permutation, so save it
	if (cursor == list.length) {
	allPermutations.add(list);
	return;
	}

montyr75 / gist:8248296

Last active January 2, 2016 04:09

Prevent the user from dragging images on the page.

montyr75 / gist:8248413

Last active January 2, 2016 04:09

Prevent the user from selecting text on the page.

montyr75 / gist:8283038

Created January 6, 2014 13:42

Change text selection colors in a browser with CSS.

montyr75 / gist:2078bdc941d22ab0d131

Created December 6, 2014 20:00

Dynamically create an HTML element from a String in Dart.

	new Element.html("YOUR HTML STRING HERE");

	// You may need to pass a NodeValidator to get everything to render, like:

	NodeValidator nodeValidator = new NodeValidatorBuilder()
	..allowTextElements();
	// ..allowHtml5()
	// ..allowElement('Button', attributes: ['ng-disabled']);

	new Element.html("YOUR HTML STRING HERE", validator: nodeValidator);

montyr75 / gist:09b5dc9a20ba01955872

Last active January 5, 2023 02:55

Find the last day of the current month with Dart's DateTime class.

	final now = DateTime.now();
	final lastDayOfMonth = DateTime(now.year, now.month + 1, 0);
	print("${lastDayOfMonth.month}/${lastDayOfMonth.day}");

montyr75 / download_string.dart

Last active June 17, 2016 17:05

Automatically send a string in the form of a downloaded file to a browser client using new HTML5 anchor attributes.

	void downloadFileToClient(String filename, String text) {
	AnchorElement tempLink = document.createElement('a');
	tempLink
	..attributes['href'] = 'data:text/plain;charset=utf-8,${Uri.encodeComponent(text)}'
	..attributes['download'] = filename
	..click();
	}

montyr75 / wait_for_config.dart

Last active June 9, 2016 16:13

Angular service that acquires information asynchronously, but has dependents waiting for that info. (Pattern)

	class ConfigService {
	var _config;

	Completer _waitForConfig = new Completer();

	ConfigService() {
	doHttpCall().then((result) {
	_config = result;
	_waitForConfig.complete(_config);
	}

Monty Rasmussen montyr75