Function checkExpression

vue.js:15427–15452

(exp, text, errors)

    // new function  用来检测js错误 可以替代eval() 字符转换js检查  字符串变量指向Function，防止有些前端编译工具报错
    function checkExpression(exp, text, errors) {
        try {
            // new function  用来检测js错误 可以替代eval() 字符转换js检查  字符串变量指向Function，防止有些前端编译工具报错
            new Function(("return " + exp));
        } catch (e) {
            //把里面的字符串替换成空的
            //然后在匹配
            // 'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
            // 'super,throw,while,yield,delete,export,import,return,switch,default,' +
            // 'extends,finally,continue,debugger,function,arguments' 这些关键词
            var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);

            if (keywordMatch) {  //收集错误信息
                errors.push(
                    "avoid using JavaScript keyword as property name: " +
                    "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
                );
            } else {
                errors.push(
                    "invalid expression: " + (e.message) + " in\n\n" +
                    "    " + exp + "\n\n" +
                    "  Raw expression: " + (text.trim()) + "\n"
                );
            }
        }
    }

    /*
     *