enforce double quotes via JSHint. Closes gh-975

.jshintrc

@@ -5,6 +5,7 @@
   "expr": true,
   "latedef": true,
   "noarg": true,
+  "quotmark": "double",
   "smarttabs": true,
   "trailing": true,
   "undef": true

grunt.js

@@ -153,7 +153,7 @@ module.exports = function( grunt ) {
 		}, {
 			authUsername: config.authUsername,
 			authToken: config.authToken,
-			jobName: 'jQuery commit #<a href="https://github.com/jquery/jquery/commit/' + commit + '">' + commit.substr( 0, 10 ) + '</a>',
+			jobName: "jQuery commit #<a href='https://github.com/jquery/jquery/commit/" + commit + "'>" + commit.substr( 0, 10 ) + "</a>",
 			runMax: config.runMax,
 			"runNames[]": tests,
 			"runUrls[]": testUrls,

package.json

@@ -26,7 +26,7 @@
 		"grunt-compare-size": ">=0.1.0",
 		"grunt-git-authors": ">=1.0.0",
 		"grunt-update-submodules": ">=0.1.0",
-		"grunt": "~0.3.9",
+		"grunt": "~0.3.17",
 		"testswarm": "0.2.2"
 	},
 	"keywords": []

src/.jshintrc

@@ -10,7 +10,8 @@
     "undef": true,
     "smarttabs": true,
     "sub": true,
-    "maxerr": 100
+    "maxerr": 100,
+    "quotmark": "double"
   },
   "globals": {
     "define": true,

test/.jshintrc

@@ -10,7 +10,8 @@
     "undef": true,
     "smarttabs": true,
     "maxerr": 100,
-    "sub": true
+    "sub": true,
+    "quotmark": "double"
   },
   "globals": {
     "define": true,

test/unit/ajax.js

@@ -2674,7 +2674,7 @@ if ( jQuery.ajax && ( !isLocal || hasPHP ) ) {
 				ok( false, "error callback called" );
 			}
 		}).fail(function( _, reason ) {
-			strictEqual( reason, 'canceled', "Request aborted by the prefilter must fail with 'canceled' status text" );
+			strictEqual( reason, "canceled", "Request aborted by the prefilter must fail with 'canceled' status text" );
 		});
 
 	});

test/unit/attributes.js

@@ -516,11 +516,11 @@ test("removeAttr(String)", function() {
 
 	try {
 		$first = jQuery("#first").attr("contenteditable", "true").removeAttr("contenteditable");
-		equal( $first.attr('contenteditable'), undefined, "Remove the contenteditable attribute" );
+		equal( $first.attr("contenteditable"), undefined, "Remove the contenteditable attribute" );
 	} catch(e) {
 		ok( false, "Removing contenteditable threw an error (#10429)" );
 	}
-	
+
 	$first = jQuery("<div Case='mixed'></div>");
 	equal( $first.attr("Case"), "mixed", "case of attribute doesn't matter" );
 	$first.removeAttr("Case");

test/unit/callbacks.js

@@ -32,14 +32,14 @@ var output,
 			};
 		}
 	};
-	
+
 	function showFlags( flags ) {
 		if ( typeof flags === "string" ) {
-			return '"' + flags + '"';
+			return "'" + flags + "'";
 		}
 		var output = [], key;
 		for ( key in flags ) {
-			output.push( '"' + key + '": ' + flags[ key ] );
+			output.push( "'" + key + "': " + flags[ key ] );
 		}
 		return "{ " + output.join( ", " ) + " }";
 	}

test/unit/core.js

@@ -567,7 +567,7 @@ test("XSS via location.hash", function() {
 	};
 	try {
 		// This throws an error because it's processed like an id
-		jQuery( '#<img id="check9521" src="no-such-.gif" onerror="jQuery._check9521(false)">' ).appendTo("#qunit-fixture");
+		jQuery( "#<img id='check9521' src='no-such-.gif' onerror='jQuery._check9521(false)'>" ).appendTo("#qunit-fixture");
 	} catch (err) {
 		jQuery["_check9521"](true);
 	}

test/unit/data.js

@@ -570,7 +570,10 @@ test("jQuery.data supports interoperable hyphenated/camelCase get/set of propert
 			"an-object": {},
 			"bool-true": true,
 			"bool-false": false,
-			"some-json": '{ "foo": "bar" }',
+			// JSHint enforces double quotes,
+			// but JSON strings need double quotes to parse
+			// so we need escaped double quotes here
+			"some-json": "{ \"foo\": \"bar\" }",
 			"num-1-middle": true,
 			"num-end-2": true,
 			"2-num-start": true
@@ -597,7 +600,10 @@ test("jQuery.data supports interoperable removal of hyphenated/camelCase propert
 			"an-object": {},
 			"bool-true": true,
 			"bool-false": false,
-			"some-json": '{ "foo": "bar" }'
+			// JSHint enforces double quotes,
+			// but JSON strings need double quotes to parse
+			// so we need escaped double quotes here
+			"some-json": "{ \"foo\": \"bar\" }"
 		};
 
 	expect( 27 );
@@ -650,7 +656,7 @@ test( "Only check element attributes once when calling .data() - #8909", functio
 
 test( "JSON data- attributes can have newlines", function() {
 	expect(1);
-	
+
 	var x = jQuery("<div data-some='{\n\"foo\":\n\t\"bar\"\n}'></div>");
 	equal( x.data("some").foo, "bar", "got a JSON data- attribute with spaces" );
 	x.remove();

test/unit/effects.js

@@ -429,7 +429,7 @@ asyncTest( "animate option { queue: 'name' }", function() {
 		order = [];
 
 	foo.animate( { width: origWidth + 100 }, {
-		queue: 'name',
+		queue: "name",
 		duration: 1,
 		complete: function() {
 
@@ -1369,10 +1369,10 @@ test("animate will scale margin properties individually", function() {
 
 	// clean up for next test
 	foo.css({
-		"marginLeft": '',
-		"marginRight": '',
-		"marginTop": '',
-		"marginBottom": ''
+		"marginLeft": "",
+		"marginRight": "",
+		"marginTop": "",
+		"marginBottom": ""
 	});
 	start();
 });
@@ -1486,9 +1486,9 @@ test( "animate should set display for disconnected nodes", function() {
 			// parentNode = null
 			jQuery("<div/>"),
 
-			jQuery('<div style="display:inline"/>'),
+			jQuery("<div style='display:inline'/>"),
 
-			jQuery('<div style="display:none"/>')
+			jQuery("<div style='display:none'/>")
 		];
 
 	strictEqual( elems[ 0 ].show()[ 0 ].style.display, "block", "set display with show() for element with parentNode = document fragment" );
@@ -1532,7 +1532,7 @@ asyncTest("Animation callback should not show animated element as animated (#715
 	foo.animate({
 		opacity: 0
 	}, 100, function() {
-		ok( !foo.is(':animated'), "The element is not animated" );
+		ok( !foo.is(":animated"), "The element is not animated" );
 		start();
 	});
 });
@@ -1563,7 +1563,7 @@ asyncTest( "hide, fadeOut and slideUp called on element width height and width =
 		elems = jQuery();
 
 	for ( ; i < 5; i++ ) {
-		elems = elems.add('<div style="width:0;height:0;"></div>');
+		elems = elems.add("<div style='width:0;height:0;'></div>");
 	}
 
 	foo.append( elems );

test/unit/event.js

@@ -861,7 +861,7 @@ test("withinElement implemented with jQuery.contains()", function() {
 
 	expect(1);
 
-	jQuery("#qunit-fixture").append('<div id="jc-outer"><div id="jc-inner"></div></div>');
+	jQuery("#qunit-fixture").append("<div id='jc-outer'><div id='jc-inner'></div></div>");
 
 	jQuery("#jc-outer").bind("mouseenter mouseleave", function( event ) {
 
@@ -934,8 +934,8 @@ test("trigger() shortcuts", function() {
 	elem.remove();
 
 	// test that special handlers do not blow up with VML elements (#7071)
-	jQuery('<xml:namespace ns="urn:schemas-microsoft-com:vml" prefix="v" />').appendTo('head');
-	jQuery('<v:oval id="oval" style="width:100pt;height:75pt;" fillcolor="red"> </v:oval>').appendTo('#form');
+	jQuery("<xml:namespace ns='urn:schemas-microsoft-com:vml' prefix='v' />").appendTo("head");
+	jQuery("<v:oval id='oval' style='width:100pt;height:75pt;' fillcolor='red'> </v:oval>").appendTo("#form");
 	jQuery("#oval").click().keydown();
 });
 
@@ -1003,21 +1003,21 @@ test("trigger(type, [data], [fn])", function() {
 	};
 
 
-	$elem.live('mouseenter', function(){
-		ok( true, 'Trigger mouseenter bound by live' );
+	$elem.live("mouseenter", function(){
+		ok( true, "Trigger mouseenter bound by live" );
 	});
 
-	$elem.live('mouseleave', function(){
-		ok( true, 'Trigger mouseleave bound by live' );
+	$elem.live("mouseleave", function(){
+		ok( true, "Trigger mouseleave bound by live" );
 	});
 
-	$elem.trigger('mouseenter');
+	$elem.trigger("mouseenter");
 
-	$elem.trigger('mouseleave');
+	$elem.trigger("mouseleave");
 
-	$elem.die('mouseenter');
+	$elem.die("mouseenter");
 
-	$elem.die('mouseleave');
+	$elem.die("mouseleave");
 
 	// Triggers handlrs and native
 	// Trigger 5
@@ -1264,7 +1264,7 @@ test(".trigger() doesn't bubble load event (#10717)", function() {
 	});
 
 	// It's not an image, but as long as it fires load...
-	jQuery( '<img src="index.html" />' )
+	jQuery("<img src='index.html' />")
 		.appendTo( "body" )
 		.on( "load", function() {
 			ok( true, "load fired on img" );
@@ -1279,10 +1279,10 @@ test("Delegated events in SVG (#10791)", function() {
 	expect(2);
 
 	var svg = jQuery(
-			'<svg height="1" version="1.1" width="1" xmlns="http://www.w3.org/2000/svg">'+
-			'<rect class="svg-by-class" x="10" y="20" width="100" height="60" r="10" rx="10" ry="10"></rect>'+
-			'<rect id="svg-by-id" x="10" y="20" width="100" height="60" r="10" rx="10" ry="10"></rect>'+
-			'</svg>'
+			"<svg height='1' version='1.1' width='1' xmlns='http://www.w3.org/2000/svg'>" +
+			"<rect class='svg-by-class' x='10' y='20' width='100' height='60' r='10' rx='10' ry='10'></rect>" +
+			"<rect id='svg-by-id' x='10' y='20' width='100' height='60' r='10' rx='10' ry='10'></rect>" +
+			"</svg>"
 		).appendTo( "body" );
 
 	jQuery( "body" )
@@ -1305,9 +1305,9 @@ test("Delegated events in forms (#10844; #11145; #8165; #11382, #11764)", functi
 
 	// Alias names like "id" cause havoc
 	var form = jQuery(
-			'<form id="myform">'+
-				'<input type="text" name="id" value="secret agent man" />'+
-			'</form>'
+			"<form id='myform'>" +
+				"<input type='text' name='id' value='secret agent man' />" +
+			"</form>"
 		)
 		.on( "submit", function( event ) {
 			event.preventDefault();
@@ -1323,7 +1323,7 @@ test("Delegated events in forms (#10844; #11145; #8165; #11382, #11764)", functi
 		.end()
 		.off("submit");
 
-	form.append('<input type="text" name="disabled" value="differently abled" />');
+	form.append("<input type='text' name='disabled' value='differently abled' />");
 	jQuery("body")
 		.on( "submit", "#myform", function() {
 			ok( true, "delegated id selector with aliased disabled" );
@@ -1334,7 +1334,7 @@ test("Delegated events in forms (#10844; #11145; #8165; #11382, #11764)", functi
 		.off("submit");
 
 	form
-		.append( '<button id="nestyDisabledBtn"><span>Zing</span></button>' )
+		.append( "<button id='nestyDisabledBtn'><span>Zing</span></button>" )
 		.on( "click", "#nestyDisabledBtn", function() {
 			ok( true, "click on enabled/disabled button with nesty elements" );
 		})
@@ -1360,10 +1360,10 @@ test("Submit event can be stopped (#11049)", function() {
 
 	// Since we manually bubble in IE, make sure inner handlers get a chance to cancel
 	var form = jQuery(
-			'<form id="myform">'+
-				'<input type="text" name="sue" value="bawls" />'+
-				'<input type="submit" />'+
-			'</form>'
+			"<form id='myform'>" +
+				"<input type='text' name='sue' value='bawls' />" +
+				"<input type='submit' />" +
+			"</form>"
 		)
 		.appendTo("body");
 
@@ -2255,14 +2255,14 @@ test(".delegate()/.undelegate()", function() {
 test("jQuery.off using dispatched jQuery.Event", function() {
 	expect(1);
 
-	var markup = jQuery( '<p><a href="#">target</a></p>' ),
+	var markup = jQuery("<p><a href='#'>target</a></p>"),
 		count = 0;
 	markup
 		.on( "click.name", "a", function( event ) {
 			equal( ++count, 1, "event called once before removal" );
 			jQuery().off( event );
 		})
-		.find( "a" ).click().click().end()
+		.find("a").click().click().end()
 		.remove();
 });
 
@@ -2708,22 +2708,22 @@ test("special bind/delegate name mapping", function() {
 	};
 
 	// Ensure a special event isn't removed by its mapped type
-	jQuery( '<p>Gut Feeling</p>' )
+	jQuery( "<p>Gut Feeling</p>" )
 		.on( "click", jQuery.noop )
 		.on( "gutfeeling", jQuery.noop )
 		.off( "click" )
 		.trigger( "gutfeeling" )
 		.remove();
 
 	// Ensure special events are removed when only a namespace is provided
-	jQuery( '<p>Gut Feeling</p>' )
+	jQuery( "<p>Gut Feeling</p>" )
 		.on( "gutfeeling.Devo", jQuery.noop )
 		.off( ".Devo" )
 		.trigger( "gutfeeling" )
 		.remove();
 
 	// Ensure .one() events are removed after their maiden voyage
-	jQuery( '<p>Gut Feeling</p>' )
+	jQuery( "<p>Gut Feeling</p>" )
 		.one( "gutfeeling", jQuery.noop )
 		.trigger( "gutfeeling" )	// This one should
 		.trigger( "gutfeeling" )	// This one should not
@@ -2805,7 +2805,7 @@ test("fixHooks extensions", function() {
 	$fixture.bind( "click", function( event ) {
 		ok( !("blurrinessLevel" in event), "event.blurrinessLevel does not exist" );
 	});
-	fireNative( $fixture[0], 'click' );
+	fireNative( $fixture[0], "click" );
 	$fixture.unbind( "click" );
 
 	jQuery.event.fixHooks.click = {
@@ -2819,7 +2819,7 @@ test("fixHooks extensions", function() {
 	$fixture.bind( "click", function( event ) {
 		equal( event.blurrinessLevel, 42, "event.blurrinessLevel was set" );
 	});
-	fireNative( $fixture[0], 'click' );
+	fireNative( $fixture[0], "click" );
 
 	delete jQuery.event.fixHooks.click;
 	$fixture.unbind( "click" ).remove();