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Is there a way to detect if a key is currently down in JavaScript?  I know about the "keydown" event, but that's not what I need. Some time AFTER the key is pressed, I want to be able to detect if it is still pressed down.  P. S. The bi...
I have a problem masking a phone input with jQuery and Masked Input Plugin.  There are 2 possible formats:   (XX)XXXX-XXXX   (XX)XXXXX-XXXX   Is there any way to mask it accepting both cases?  EDIT:  I tried:  $("#phone").mask("(99) 999...
I'm using forms in HTML and javascript. I would like an alert to pop up only if the user inputs a LETTER and clicks submit.  So I have the HTML code:  <form name="myForm" action="" onsubmit="return checkInp()" method=&#...
I have this right now:  <input type="text" placeholder="Paste text" onPaste="alert(this.value);">  This does infact work, except, it returns a blank alert window. I don't get any value. Help?...
This is strange behavior to me but on Webkit browsers (Chrome/Safari, not Firefox) if I include a space in a string of numbers in an <input type=number> then the value of that input is empty.  See this JSFiddle: http://jsfiddle.net/timrpeterson...
Note:      The answers & comments below reflect the state of legacy browsers in 2009. Now you can actually set the value of the file input element dynamically/programatically using JavaScript in 2017.      See the answer in this question for d...
I am trying to get the text in a text box as the user types in it (jsfiddle playground):    function edValueKeyPress() {     var edValue = document.getElementById("edValue");     var s = edValue.value;      var lblValue = document.getElementB...
I'm testing xss attacks on my own code. The example beneath is a simple box where an user can type whatever he wants. After pressing "test!" button, JS will show the input string into  two divs.This is an example I made to explain better...

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