javascript函数将括号外的值添加到括号内的值

Question

我正在尝试创建一个自动创建问题的函数。

function getRandomInt(min, max) {
return Math.floor(Math.random() * (max - min + 1)) + min;
}

var totalvar = getRandomInt(2,4);

var main = "";
    for (var i = 1; i <= totalvar; i++) {
        var test =  getRandomInt(1,3);
       // alert(test);
        var myArray = ["A","B","C","A&apos;","B&apos;","C&apos;"];
        var text ="";
        for (var a = 1; a <= test; a++) {
                    function random(array) {
                    return array[Math.floor(Math.random() * array.length)]
                    }
                        var testing = random(myArray);
                        if (testing =="A") {
                            var testing2 ="A&apos;";    

                        } else if (testing =="A&apos;") {
                            var testing2 ="A";  

                        } else if (testing =="B") {
                            var testing2 ="B&apos;";    

                        } else if (testing =="B&apos;") {
                            var testing2 ="B";  

                        }else if (testing =="C") {
                            var testing2 ="C&apos;";    

                        } else if (testing =="C&apos;") {
                            var testing2 ="C";  

                        }
                        //alert(testing);
                        //alert(myArray);
                        text += testing
                        var index = myArray.indexOf(testing);
                        if (index > -1) {
                            myArray.splice(index, 1);
                        }
                        var index = myArray.indexOf(testing2);
                        if (index > -1) {
                            myArray.splice(index, 1);
                        }

        }
         var brackets =  getRandomInt(1,3);
         var chances =  getRandomInt(1,3);
        var lastLetter = main.charAt(main.length - 1);

        if (brackets == 1) {
             text = "(" + text + ")";

         if (main == "") {
             main = text;
         }  else if ( lastLetter == ')') {
         if ( chances !== 1) {
             main += text;

         }else
            main += "+" + text;


         }else
         main += "+" + text;



         } else {
             if (main == "") {
             main = text;
         }   else if ( lastLetter == ')') {
                    if ( chances !== 1) {
                        main += text;

                    }else
                        main += "+" + text;


            }else
                main += "+" + text;


         }


}

我设法让它显示我想要的问题

B'C'+(A'C'B')+BCA

B+(C')(CAB)

A'BC+(C')A+AB'

B'C'+AB(A'C'B')+BCA

我陷入困境，因为我无法获取下一步的函数，该函数将括号外的值乘以

B'C'+A'C'B'+BCA

B+C'CAB

A'BC+C'A+AB'

B'C'+ABA'C'B'+BCA

以上是我希望实现的目标，但我无法创建该功能大家有什么建议吗？

Answer 1

使用replace :

var str = "B'C'+(A'C'B')+BCA";

var response = str.replace(/([\(\)]+)/g, '');

console.log(response);
// output: "B'C'+A'C'B'+BCA"