The operators display

For the calculator that I've created, I had until now all the buttons d entry in the display such as the numbers and operators. However for operators when trying to store the value in two variables 'num1' and 'num2', I traced to test whether they worked very well however they came out as "NaN". Here is the code I have so far and the highlighted area is what I'm currently working

import flash.events.MouseEvent;


var btn:Array = new Array();


for(var i = 0; i < 10; i++) {
          var myBtn:Btn = new Btn();
          myBtn.y = 15;
          myBtn.x = i * 100 + 15;
          myBtn.width = 48;
          myBtn.height = 48;
          myBtn.buttonMode = true;
          myBtn.mouseChildren = false;
          myBtn.num = Number(i);
          myBtn.caption.text = String (i);
          addChild(myBtn);
          btn.push(myBtn);
          btn[i].addEventListener(MouseEvent.CLICK,pressNumber);//EVENT TO ADD NUMBERS TO DISPLAY 


  
}
btn[0].y += 370;
btn[0].x += 10;


btn[1].y += 310;
btn[1].x += -90;


btn[2].y += 310;
btn[2].x += -130;


btn[3].y += 310;
btn[3].x += -170;


btn[4].y += 250;
btn[4].x += -390;


btn[5].y += 250;
btn[5].x += -430;


btn[6].y += 250;
btn[6].x += -470;




btn[7].y += 190;
btn[7].x += -690;


btn[8].y += 190;
btn[8].x += -730;


btn[9].y += 190;
btn[9].x += -770;


//OPERATORS//
var operators:Array = new Array();
for(var io:int = 0; io < 6; io++) {
          var opBtn:Btn_operator = new Btn_operator();
          opBtn.width = 48;
          opBtn.height = 48;
          opBtn.buttonMode = true;
          opBtn.mouseChildren = false;
          opBtn.caption_op.text = String (".");
          addChild(opBtn);
          operators.push(opBtn); 
          operators[io].addEventListener(MouseEvent.CLICK, pressOperator);//EVENT TO ADD OPERATORS TO DISPLAY
}


//ADD DOT
var dot:Btn_dot = new Btn_dot();
          dot.width = 48;
          dot.height = 48;
          dot.buttonMode = true;
          dot.mouseChildren = false;
          dot.caption_op.text = String (".");
          addChild(dot);
  


dot.y += 383;
dot.x += 78;
dot.addEventListener(MouseEvent.CLICK, addDot);//EVENT TO ADD DOT TO DISPLAY






//BACKSPACE
var goBack:Btn_backspace = new Btn_backspace();
          goBack.width = 48;
          goBack.height = 48;
          goBack.buttonMode = true;
          goBack.mouseChildren = false;
          goBack.caption_op.text = String ("<--");
          addChild(goBack);
  


goBack.y += 203;
goBack.x += 256;
goBack.addEventListener(MouseEvent.CLICK, backSpace);//EVENT TO GO BACK SPACE IN DISPLAY










//BACKSPACE
var clearAll:Btn_clear = new Btn_clear();
          clearAll.width = 48;
          clearAll.height = 48;
          clearAll.buttonMode = true;
          clearAll.mouseChildren = false;
          clearAll.caption_op.text = String ("C");
          addChild(clearAll);
  


clearAll.y += 323;
clearAll.x += 256;
clearAll.addEventListener(MouseEvent.CLICK, clearFields);//EVENT TO GO BACK SPACE IN DISPLAY








operators[0].y += 383;
operators[0].x += 138;
operators[0].caption_op.text = String("=");




operators[1].y += 383;
operators[1].x += 198;
operators[1].caption_op.text = String("/");




operators[2].y += 323;
operators[2].x += 198;
operators[2].caption_op.text = String("*");


operators[3].y += 263;
operators[3].x += 198;
operators[3].caption_op.text = String("-");


operators[4].y += 203;
operators[4].x += 198;
operators[4].caption_op.text = String("+");


operators[5].y += 263;
operators[5].x += 256;
operators[5].caption_op.text = String("-/+");




//VARIABLE HANDLE OPERATION NOT BUTTON
var operate:String;


//HANDLE FIRST AND SECOND VALUE
var num1:Number;
var num2:Number;


//grouping all buttons in function




//display_txt.text = "0";
//DISPLAYING NUMBERS IN DISPLAY
//var numberEntered:String ="";
function pressNumber(e:MouseEvent):void{
                 display_txt.appendText(e.target.num);
}


//DISPLAY OPERATORS
function pressOperator(event:MouseEvent):void{
          var operatorEntered:String;
          display_txt.appendText(event.currentTarget.caption_op.text);
          //CHECKING FOR VALUES AND STORING NUMBERS
          if(!num1){
                    //CONVERT STRING TO NUMBER
                    num1=Number(display_txt.text);
                    operate = operatorEntered;
                    trace(num1);
                    display_txt.text = "";
  
          }
          else if(!num2){
                    num2 = Number(display_txt.text);
                    performCalculation();
                    operate = operatorEntered;
          }
          }




//CLEARS DISPLAY AREA
function clearFields(event:MouseEvent):void{
          display_txt.text = "";
          num1=NaN;
          num2=NaN;
          }


//ADDS DECIMAL PLACE
function addDot(event:MouseEvent):void{
          if (display_txt.text.indexOf(".")==-1){
                    display_txt.appendText(".");
          }
  
          }
//BACKSPACE DISPLAY AREA
function backSpace(e:MouseEvent):void{
          var temp_str:String = display_txt.text;
          display_txt.text = temp_str.substr(0, (temp_str.length-1)); // Get rid of last character in the string, which in this case is the phantom \r or \n character
}


function performCalculation():void{
  
          switch (operate){
          case "multiply":
                    num1*=num2;
          break;
          case "divide":
                    num1/=num2;
          break;
          case "subtract":
                    num1-=num2;
          break;
          case "add":
                    num1+=num2;
          break;
                    default:
          break;
}
//now that we found out the result
//let's display on the window
display_txt.text=String(num1);
num2=NaN;
  
}

I need to see if the number is stored when I click on operator d. In the trace, it is supposed to display the number entered after I click on an operator, but it displays as "NaN" I guess all of this function has errors. This is the pressOperator function, I work with that

Post edited by: ay5ha

use:

var currentNumber:String ="";
function pressNumber(e:MouseEvent):void{
                 display_txt.appendText(e.target.num);
                 currentNumber+=e.target.num;
}

Tags: Adobe Animate

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