构建对象，其中构造函数是字符串 [英] Build object where the constructor is a string

问题描述

如果构造函数是字符串，有没有办法(除了使用eval())来构建sapui5控件?

Is there a way (except using eval()) to build a sapui5 control if the constructor is a string?

比如我想构建一个文本控件:

For example, I want to build a text control:

var oText = new sap.m.Text({});

但部分new sap.m.Text({})"实际上是一个字符串.我试过 eval():

but the part "new sap.m.Text({})" is actually a string. I tried eval():

var sObj = "new sap.m.Text({});";
var oObj = eval(sObj);
oObj.setText("Hello"); 

它有效.

问题是是否有另一种更安全的方法来做到这一点.

The question is if there is another, more secure way to do it.

推荐答案

基于@dfsq 的评论，您可以使用new Function:

Based on @dfsq's comment you can use new Function:

var fControlGenerator = function (sControlCommand) {
    return new Function("return " + sControlCommand)();
};
var oControl = fControlGenerator("new sap.m.Text()");

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