Du Dang ddang77

ddang77 / leaflet-big-image-full.html

Created May 5, 2017 15:51 — forked from longhotsummer/leaflet-big-image-full.html

Full example of using leaflet to pan and zoom a big image, as described at http://kempe.net/blog/2014/06/14/leaflet-pan-zoom-image.html

	<html>
	<!-- See also: http://kempe.net/blog/2014/06/14/leaflet-pan-zoom-image.html -->
	<head>
	<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.css"></script>
	<style>
	#image-map {
	width: 100%;
	height: 300px;
	border: 1px solid #ccc;
	margin-bottom: 10px;

ddang77 / nil_empty_blank_present_ffdierence_in_ruby

Created September 2, 2016 13:43 — forked from pythonicrubyist/nil_empty_blank_present_ffdierence_in_ruby

Difference between nil?, empty?, blank? and present? in Ruby and Ruby on Rasils.

	# nil? can be used on any Ruby object. It returns true only if the object is nil.
	nil.nil? # => true
	[].nil? # => false
	{}.nil? # => false
	"".nil? # => false
	" ".nil? # => false
	true.nil? # => false

	# empty? can be used on some Ruby objects including Arrays, Hashes and Strings. It returns true only if the object's length is zero.
	nil.empty? # NoMethodError: undefined method `empty?' for nil:NilClass