How do you add multiple arguments from different functions into one function containing all the para-CodePudding

I have a question and not looking for a solution to the code printed below, the example is just there for reference.

I would like to know if it's possible to add multiple arguments from different functions into one function containing all the parameters.

Basically, I would like to know how to write this code correctly.

I LIKE TO STATE I AM NEW TO JAVASCRIPT AND MAY NOT KNOW HOW TO WRITE THESE QUESTIONS OUT CORRECTLY ON OVER-STACK FOR YOU PROFESSIONAL TO ANSWER.

This is a fake example code

Step 1: I have a main function that holds all the parameters, x, y, z.


function sumNum(x, y, z) {

return (x * y)   z;

}

Step 2: Question - What do I need to add within the brackets as an argument to link the X parameter in the above function in step 1.


function num1() {

sumNum() 

}

Step 3: Question - What do I need to add within the brackets as an argument to link the Y parameter in the above function in step 1.


function num2() {

sumNum()

}

Step 4: Question - What do I need to add within the brackets as an argument to link the Z parameter in the above function in step 1.


function num3() {

sumNum()

}

I understand that you need to call the arguments in the order you have them set as parameters, but I want to know if there are other ways of writing this code to get the same results.

CodePudding user response：

You can do something like this for example you have your 3 functions, each of them receive 1 parameter

function num1(param) {
  //your code for num1, return a value
  return param
}


function num2(param) {
  //your code for num2, return a value
  return param
}


function num3(param) {
  //your code for num3, return a value
  return param
}

Then you can call them all inside single function that will receive all 3 parameters needed for num1, num2 and num3

function sumNum(x, y, z) {
    var value1 = num1(x);
    var value2 = num1(y);
    var value3 = num1(z);
    return (value1 * value2)   value3;
}

Then call your function with the needed parameters

var result = sumNum(1,2,3)
console.log(result);//your output = 5

CodePudding user response：

Without using JQuery and using the code I got from user "Chris G", I believe this is the best answer to my question. Please leave comments if I have written this wrong so I can correct it.


<button id= "btn">Get Answer</button>


var numVal1 = 2;
var numval2 = 6;
var numval3 = 9;

document.getElementById("btn").addEventListener("click", function() {
funcPara(numVal1, numVal2, numVal3);
})

function funcPara(x, y, z) {

num1(x);
num2(y);
num3(z);

}


function num1(para) {

console.log(`num1 = ${para}`);  

}


function num2(para) {

console.log(`num2 = ${para}`);

}


function num3(para) {

console.log(`num3 = ${para}`);

}