How to make elements invisible?

Q

✍: Guest

A

Change the "visibility" attribute of the style object associated with your element. Remember that a hidden element still takes up space, use "display" to make the space disappear as well.

if ( x == y) {
myElement.style.visibility = 'visible';
} else {
myElement.style.visibility = 'hidden';
}

2011-06-07, 4462👍, 0💬

The definition for test schedule
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How to set the cursor to wait?
How to set the cursor to wait? In theory, we should cache the current state of the cursor and then put it back to its original state. document.body.style.cursor = 'wait'; //do something interesting and time consuming document.body.style.cursor = 'auto'; 2011-06-07, 4110👍, 0💬

How to change style on an element?
How to change style on an element? Between CSS and javascript is a weird symmetry. CSS style rules are layed on top of the DOM. The CSS property names like "font-weight" are transliterated into "myElement.style.fontWeight". The class of an element can be swapped out. For example: document.getElement... 2011-05-31, 4039👍, 0💬

How to reload the current page
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How to Add Event Handlers?
How to Add Event Handlers? You can add an event handler in the HTML definition of the element like this: <script type="text/javascript">&lt ;!--function hitme() { alert("I've been hit!"); } // --> </script> <input type="button" id="hitme" name="hitme" value="hit me" o... 2011-05-24, 3720👍, 0💬

How to get values from cookies to set widgets?
How to get values from cookies to set widgets? function getCookieData(labelName) { //from Danny Goodman var labelLen = labelName.length; // read cookie property only once for speed var cookieData = document.cookie; var cLen = cookieData.length; var i = 0; var cEnd; while (i < cLen) { var j = ... 2011-05-24, 3544👍, 0💬

How to remove the event listener?
How to remove the event listener? <script type="text/javascript">&lt ;!--document.getElementById("hitme 4").removeEventListener("click ",hitme4, false); // --> </script> Key Events "onkeydown", "onkeypress", "onkeyup" events are supported both in ie and standards-based browse... 2011-05-31, 3479👍, 0💬

How to convert numbers to strings using JavaScript?
How to convert numbers to strings using JavaScript? You can prepend the number with an empty string var mystring = ""+myinteger; or var mystring = myinteger.toString(); You can specify a base for the conversion, var myinteger = 14; var mystring = myinteger.toString(16); mystring will be "e". 2011-06-21, 3437👍, 0💬

How to convert a string to a number using JavaScript?
How to convert a string to a number using JavaScript? You can use the parseInt() and parseFloat() methods. Notice that extra letters following a valid number are ignored, which is kinda wierd but convenient at times. parseInt("100") ==> 100 parseFloat("98.6") ==> 98.6 parseFloat("98.6 ... 2011-06-21, 3437👍, 0💬

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