3 different ways to clear the option options in the select tag
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Method 1 Copy code The code is as follows:document.getElementById("selectid").options.length = 0; Method 2 Copy code The code is as follows:document.formName.selectName.options.length = 0; Method 3 Copy code The code is as follows:document.getElementById("selectid").innerHTML = ""; |
>>: MySQL chooses the appropriate data type for id
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