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Jquery Getelementsbytagname Error

Navigation ← Previous TicketNext Ticket → Opened 6 years ago Closed 6 years ago Last modified 5 years ago #8052 closed bug (fixed) IE9 document.getElementsByTagName javascript getelementsbytagname is not a function throws an error Reported by: [email protected]… Owned by: snover Priority: element.getelementsbytagname is not a function html2canvas blocker Milestone: 1.5.1 Component: manipulation Version: 1.5rc1 Keywords: Cc: Blocked by: Blocking: Description In IE9 (beta) getelementsbytagname not a function it looks like document.getElementsByTag name isn't supported. JQuery line 5456 throws an error: "Object doesn't support this property or method..." for code elem.document.getElementsByTag("*") Oldest first Newest first

Cannot Read Property 'getelementsbytagname' Of Undefined

Threaded Comments only Change History (51) comment:1 Changed 6 years ago by addyosmani Owner set to [email protected]… Priority changed from undecided to low Status changed from new to pending Could you please provide us with a reduced test case on jsFiddle.net that reproduces this error? I've just put together ​this simple test and everything typeerror: getelementsbytagname is not a function seems to be working fine in IE9 beta with the 1.5RC. Please also let us know if you're testing in a particular standards mode. PS: Also bare in mind I'm assuming you're referring to getElementsByTagName. If not, let us know. Last edited 6 years ago by addyosmani (previous) (diff) comment:2 Changed 6 years ago by [email protected]… Hey Addy, Your test works in jsFiddle because it changes the document mode to IE7 (jsFiddle doesn't work in IE9 mode). The bug only happens in IE9 mode. comment:3 Changed 6 years ago by thiessenp Something as basic as the below throws an exception in IE. Note: comment above about JSFiddle in IE9 document mode Note: I tried with a HTML4 and HTML5 doc type Note: Please disregard the new bug I opened: Ticket #8062 script var el = $('

how can this break IE9 - WTF?!

');

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Form.getelementsbytagname Is Not A Function

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Xmldoc.getelementsbytagname Is Not A Function

Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like https://bugs.jquery.com/ticket/8052 you, helping each other. Join them; it only takes a minute: Sign up Uncaught TypeError: Cannot read property 'getElementsByTagName' of null up vote 2 down vote favorite 1 I'm trying to use this solution -> http://stackoverflow.com/a/7410966/2007055 But why this code line with .getElementsByTagName() which is used by that solution, produced an error: var tags = document.body.getElementsByTagName("*"); Uncaught http://stackoverflow.com/questions/23264313/uncaught-typeerror-cannot-read-property-getelementsbytagname-of-null TypeError: Cannot read property 'getElementsByTagName' of null Can somebody guess why it's producing the error and how can I fix it? (Thanks!) javascript function typeerror share|improve this question asked Apr 24 '14 at 8:58 Servant 76411331 What does console.log(document.body) give you? –Salman A Apr 24 '14 at 9:00 add a comment| 2 Answers 2 active oldest votes up vote 8 down vote accepted document.body won't get a value assigned to it until the body element has been created. Move the script from the element to the element (since you are trying to get all the elements in it, you'd want to be at the end of the body element) or put it in a function and call it from an event that fires after the body has been created (such as the window load event). share|improve this answer answered Apr 24 '14 at 9:00 Quentin 491k56641811 +1, still too fast for me. –Andy Earnshaw Apr 24 '14 at 9:00 ..

Learn Bootstrap Learn Graphics Learn Icons Learn How To JavaScript Learn JavaScript Learn jQuery Learn jQueryMobile Learn AppML Learn AngularJS Learn JSON Learn AJAX Server Side Learn SQL Learn PHP Learn http://www.w3schools.com/js/js_htmldom_nodelist.asp ASP Web Building Web Templates Web Statistics Web Certificates XML Learn XML Learn http://callmenick.com/post/jquery-functions-javascript-equivalents XML AJAX Learn XML DOM Learn XML DTD Learn XML Schema Learn XSLT Learn XPath Learn XQuery × HTML HTML Tag Reference HTML Event Reference HTML Color Reference HTML Attribute Reference HTML Canvas Reference HTML SVG Reference Google Maps Reference CSS CSS Reference CSS Selector Reference W3.CSS Reference Bootstrap Reference Icon not a Reference JavaScript JavaScript Reference HTML DOM Reference jQuery Reference jQuery Mobile Reference AngularJS Reference XML XML Reference XML Http Reference XSLT Reference XML Schema Reference Charsets HTML Character Sets HTML ASCII HTML ANSI HTML Windows-1252 HTML ISO-8859-1 HTML Symbols HTML UTF-8 Server Side PHP Reference SQL Reference ASP Reference × HTML/CSS HTML Examples CSS Examples W3.CSS Examples Bootstrap Examples JavaScript JavaScript Examples HTML DOM Examples not a function jQuery Examples jQuery Mobile Examples AngularJS Examples AJAX Examples XML XML Examples XSLT Examples XPath Examples XML Schema Examples SVG Examples Server Side PHP Examples ASP Examples Quizzes HTML Quiz CSS Quiz JavaScript Quiz Bootstrap Quiz jQuery Quiz PHP Quiz SQL Quiz XML Quiz × JS Tutorial JS HOME JS Introduction JS Where To JS Output JS Syntax JS Statements JS Comments JS Variables JS Operators JS Arithmetic JS Assignment JS Data Types JS Functions JS Objects JS Scope JS Events JS Strings JS String Methods JS Numbers JS Number Methods JS Math JS Random JS Dates JS Date Formats JS Date Methods JS Arrays JS Array Methods JS Array Sort JS Booleans JS Comparisons JS Conditions JS Switch JS Loop For JS Loop While JS Break JS Type Conversion JS RegExp JS Errors JS Debugging JS Hoisting JS Strict Mode JS Style Guide JS Best Practices JS Mistakes JS Performance JS Reserved Words JS JSON JS Forms JS Forms Forms API JS Objects Object Definitions Object Properties Object Methods Object Prototypes JS Functions Function Definitions Function Parameters Function Invocation Function Closures JS HTML DOM DOM Intro DOM Methods DOM Document DOM E

a dive into some common and useful jQuery functions and their JavaScript equivalents. In light of my recent forays into the JavaScript DOM world, I'd decided to do a little research and write a snippet collection based on jQuery functions and their JavaScript equivalents. I think jQuery is a great tool, and it has done great things for me and many others as developers. But I'm a firm believer that nowadays, JavaScript is an indispensable tool to keep in your arsenal. Manipulating the DOM with JavaScript DOM methods is fun and easy, and the majority of times, plain old vanilla JS is all we need. It seems scary at first, but let's take a look at some core functions/methods that we're accustomed to, how they work, and how to execute them with just plain old JavaScript. Accessing Elements There are many ways to access elements with JavaScript and jQuery. Let's look at a few important ones here. By ID In this above scenario, we're accessing by ID, so we'd expect that only one element is returned. With jQuery, we tend to access single elements by ID like this: var el = $("#element"); With regular JS, we can achieve this two ways: // traditional JS var el = document.getElementById("element"); // new school JS var el = document.querySelector("#element"); From here on, we can use these variables and apply our manipulations whenever we want. We've successfully assigned an element to a variable, and can now use it wherever we want. By Class & Tag In jQuery, we also see that we can access all elements that have a certain class or tag. This is useful when we want to iterate over all of these elements and perform functions on them. We'd access them like this: // access by tag name var els = $("p"); // access by class var els = $(".class"); Here's the JavaScript equivalents: // by tag name var els = document.getElementsByTagName("p"); // OR var els = document.querySelectorAll("p"); // by class name var els = document.getElementsByClassName("class"); // OR var els = document.querySelectorAll(".class"); Useful Tips The methods getElementsByTagName, getElementsByClassName, querySelector, and querySelectorAll can be applied to DOM elements to return collections of elements or node lists that are children of an element in question. We can, for example, do this: var wrapper = document.getElementById("wrapper"), els = wrapper.querySelectorAll("p"); A jQuery equivalent would be this: var els = $("#wrapper p"); Caveats

 

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