Javascript Error Null
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Null Is Not An Object Evaluating E Strings
is my Code (HTML):
Hello World!
This is an example website
Here is the JS: var myButton = document.getElementById("myButton"); var myTextfield = document.getElementById("myTextfield"); function greetUser(userName) { var greeting = "Hello " + userName + "!"; document.getElementsByTagName ("h2")[0].innerHTML = greeting; } myButton.onclick = function() { var userName = myTextfield.value; greetUser(userName); return false; } Any Idea why I am getting the error? javascript html html5 share|improve this question asked Jan 8 '13 at 3:48 Mark H 1692519 This isn't your problem, but I'd recommend using a submit event handler on the form rather than a click event handler on the button. Then it will work if someone presses enter, too. –icktoofay Jan 8 '13 at 4:09 add a comment| 5 Answers 5 active oldest votes up vote 22 down vote accepted Put the code so it executes after the elements are defined, either with a DOM ready callback or place the sour'document.getElementById('table').innerHTML') I am trying to use my Delete button but every time I click on it, I get the above error in Safari. In Google Chrome, I get the following error: Uncaught TypeError: Cannot read property 'innerHTML'
React Native Null Is Not An Object (evaluating
of null The error comes from my index.js source code. Here is the index.js null is not an object okcupid code. db.transaction(function (tx) { tx.executeSql('INSERT INTO RELATE (firstname, lastname, fathername, mothername) VALUES ("' + firstName + '","' + lastName + '","' typeerror 'null' is not an object safari + fatherName + '","' + motherName + '")'); tx.executeSql('SELECT * FROM RELATE WHERE firstname = "' + firstName + '" AND lastname = "' + lastName + '" AND fathername = "' + fatherName + http://stackoverflow.com/questions/14207922/javascript-error-null-is-not-an-object '" AND mothername = "' + motherName + '"', [], function (tx, results) { var len = results.rows.length, i; for (i = 0; i < len; i++){ msg = "