keyup

问题 I'm having a few issues getting a keyup event to fire on my iPhone, my code is as follows: var passwordArray = ["word", "test", "hello", "another", "here"]; var test = document.getElementById('enter-password'); test.addEventListener('keyup', function(e) { if (jQuery.inArray(this.value, passwordArray) != -1) { alert("THIS IS WORKING"); } else {} }); The idea being that as the user is typing into the #enter-password field, as and when they've matched a word in the passwordArray the alert will

问题 I need to detect the case of characters in event keydown and keyup $('body').keydown( function(event) { var charCode = (event.which) ? event.which : event.keyCode; var char = String.fromCharCode(charCode); console.log(char + " is down pressed"); } ); $('body').keyup( function(event) { var charCode = (event.which) ? event.which : event.keyCode; var char = String.fromCharCode(charCode); console.log(char + " is up pressed"); } ); You may try it here: http://jsfiddle.net/8dqwW/ It's always

问题 I want to make a dynamic textarea, it should increase in rows as the content increase. I am using this code: $("#text_textarea").keyup(function(e) { //splitting textarea value wrt '\n' to count the number of lines if ($(this).val().lastIndexOf('\n')!=-1) var x = $(this).val().split('\n'); $(this).attr( "rows" , x.length+1 ); }); But it fails when user continues to write without giving any new line \n (pressing Enter). 回答1: var keyUpTimeout = false; // Required variables for performance var

问题 I have a C#.NET MVC3 web app and I want to trap the key up event on the document. Namely, I want to know if the usre has selected "CTL->Z" to undo their data changes on the web View. How might I do this? 回答1: I think this is what you're looking for: var ctrlDown = false; $(document).keydown(function (e) { if (e.which == 17) ctrlDown = true; if (e.which == 90) if (ctrlDown) console.log("control Z"); }); $(document).keyup(function (e) { if (e.which == 17) ctrlDown = false; }); EDIT I'm not sure

问题 When I type in DPRtelephonenumber I want to repeat it in DPRcallerhometelephonenumber. This script works as long as I am typing. But if <INPUT id="DPRtelephonenumber"> offers a drop-down from a previously used value, AND I select it, <INPUT id="DPRcallerhometelephonenumber"> does not get set. So, what do I need more than a keyup? How do I write in an onselect?? <input name="DPRtelephonenumber" id="DPRtelephonenumber" type="text"> <input name="DPRcallerhometelephonenumber" id=

问题 I'm using an iframe to display a website next to a form. I want to update certain content within that iframe live based upon the value of the various input fields. This is what I'm trying to do (working outside of an iframe): http://jsfiddle.net/YkKUS/ The textarea will be outside of the iframe and the content that'll be updated will be inside the iframe. Here is my code adapted to work with my iframe: $('.liveDemoFrame').load( function(){ // load the iframe $(this.contentDocument).find('h1')

问题 I have this jquery ajax call that is trigger on keyup . It has error handling which (with Firefox for e.g.) is triggered multiples times if the user enters keystrokes fast. Is there a quick way to stop multiple alert windows to be shown? $('input[name$="_LOC"]').keyup(function(){ if ($(this).val().length >=4){ $.ajax({ type: 'POST', url: 'red.asp?q='+$(this).val(), beforeSend: function() { [...] }, success: function(data) { [...] }, error: function() { alert("Oops!") } }); } }); 回答1: Restart

问题 I'm trying to filter multiple lists (books of specific categories) with headers (category name) on keyup with jQuery. I want to only filter search the items within the list (the specific books), but not filter the headers. If a list is empty, the header (category name) should disappear. What I have so far works on filtering the multiple lists, but headers don't disappear if their list is empty. I would also like to exclude the .custom-books list from filter. HTML: <input type="text" id=

问题 I am trying to control google earth using the arrow keys, however, I want to do this with applescript. Essentially this code should work and I'll tell you what it actually does. tell application "System Events" delay 3 key down 124 #Value of key right delay 3 key up 124 end tell This code should wait for me to go to google earth, then it will hold the right arrow key for 3 seconds. However, it just hits 'a'. I saw some recommendations to do the following: key down (key code 124) This sort of

问题 I am using nicEdit in its iframe format.Everytime the user write anything in the editor(keyup event), I need to run another js/jquery function. How to add this custom keyup action to the desired iframe? 回答1: The answer actually lies in the js code. In the nicEdit.js search for : var nicEditorIFrameInstance = nicEditorInstance.extend({ Inside this, in the initFrame function, look for this.frameDoc.addEvent . This is where the events are being added(via addEvent). To this include your keyup