[英]What's wrong with this simple code - Substring?
这是怎么了
function setMaxLenght(textbox, length) {
var currentLength = textbox.value.length;
var minimum = Math.min(currentLength, length);
textbox.value = textbox.value.subString(0, minimum - 1);
}
当代码到达最后一行时,它将引发此错误:
Uncaught type error: Object 1 has no method 'subString'
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