JavaScript Reference/Javascript Methods/getExpression — различия между версиями
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Текущая версия на 08:22, 26 мая 2010
"getExpression()" Example
<!--
Example revised from
The Web Programmer"s Desk Reference
by Lazaro Issi Cohen and Joseph Issi Cohen
ISBN: 1593270119
Publisher: No Starch Press 2004
-->
<html>
<body>
<script language="JScript">
function function1() {
myDiv.style.setExpression("height","eval(myDiv.innerHTML)");
}
function function2() {
alert(myDiv.style.getExpression("height"));
}
function function3() {
alert(myDiv.style.removeExpression("height"));
}
function function4() {
myDiv.innerHTML = 100; document.recalc();
}
</script>
<button onclick="function1();">Set expression</button>
<button onclick="function2();">Get expression</button>
<button onclick="function3();">Remove expression</button>
<button onclick="function4();">Recalc</button>
<div id="myDiv" style="height:300; width:200; border:solid 1px black">20</div>
</body>
</html>
"getExpression()" is applied to
+----------------+--------------------------------------------------------------+
| Applied_To |<a> <acronym> |
| |<address> <area> |
| |<b> <bdo> |
| |<big> <blockquote> |
| |<body> <br> |
| |<button> <caption> |
| |<center> <cite> |
| |<code> <col> |
| |<colgroup> currentStyle |
| |<custom> <dd> |
| |<del> <dfn> |
| |<dir> <div> |
| |<dl> <dt> |
| |<em> <fieldset> |
| |<font> <form> |
| |<hn> <hr> |
| |<i> <iframe> |
| |<img> <input type="button"> |
| |<input type="checkbox"> <input type="file"> |
| |<input type="hidden"> <input type="image"> |
| |<input type="password"> <input type="radio"> |
| |<input type="reset"> <input type="submit"> |
| |<input type="text"> <ins> |
| |<kbd> <label> |
| |<legend> <li> |
| |<listing> <marquee> |
| |<menu> <nobr> |
| |<object> <ol> |
| |<option> <p> |
| |<pre> <q> |
| |<rt> <ruby> |
| |runtimeStyle <s> |
| |<samp> <select> |
| |<small> <span> |
| |<strike> <strong> |
| |style <sub> |
| |<sup> <table> |
| |<tbody> <td> |
| |<textarea> <tfoot> |
| |<th> <thead> |
| |<tr> <tt> |
| |<u> <ul> |
| |<var> |
+----------------+--------------------------------------------------------------+
"getExpression()" Syntax, Parameters and Note
Note:
Returns the dynamic property expression.
To use this method, you must first have used the setExpression() method.
Syntax:
objectName.getExpression(param1)
document.all.elementID.getExpression(param1)
Parameters:
param1 Required; the name of the property.