Methods to hide option options: 1. Use the "document.getElementById(id)" statement to obtain the specified option object based on the id value; 2. Use the "option object.style.display="none"" statement to specify The option option can be hidden.
The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.
How to hide option options in javascript
Implementation ideas:
Use getElementById() to obtain Specify the option option;
Set the display="none" style to the specified option option to hide it.
Implementation code:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
</head>
<body>
请选择：<select>
<option value="1" selected>1</option>
<option id="opt" value="2">2</option>
<option value="3">3</option>
</select>
<button id="btn">隐藏值为2的option选项</button>
<script>
function my(id) {
return document.getElementById(id);
}
my("btn").onclick = function() {
my("opt").style.display="none";
}
</script>
</body>
</html>
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