SCRIPT1006:预期')' [英] SCRIPT1006: Expected ')'
本文介绍了SCRIPT1006:预期')'的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
在下面的函数中,IE表示缺少')':
In the function below, IE says that ')' is missing:
function padZeros(num, size = 4) {
var s = num+"";
while (s.length < size) {
s = "0" + s;
}
return s;
}
我缺少什么?
推荐答案
问题在于Internet Explorer不理解参数的默认值 - 这是ES2015 +,并且由于IE的开发很久以前停止了,新的方式就没有了ES2015 +语法将适用于IE
The issue is that Internet Explorer does not understand "default values for arguments" - this is ES2015+ and since development for IE stopped a long time ago, there's no way the new fangled ES2015+ syntax will ever work for IE
尝试使用像 babel 例如直到IE正式死亡!
Try using a transpiler like babel for example until IE officially dies!
function padZeros(num) {
var size = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 4;
var s = num + "";
while (s.length < size) {
s = "0" + s;
}
return s;
}
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