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Function returning undefined value, a bit confused


By : Anupam kakati
Date : October 18 2020, 06:10 PM
With these it helps That's not a valid use of switch. You will have to use if statements:
code :
var bills = [124, 48, 268];

function tipsCalculator(bill) {
  if (bill < 50)
    return (bill * (20 / 100));

  if (bill >= 50 && bill <= 200)
    return (bill * (15 / 100));

  if (bill > 200)
    return (bill * (10 / 100));
}

var testing = tipsCalculator(bills[0]);
console.log(testing);
function tipsCalculator(124) { // bills[0] == 124
  switch (124) {
    case false: // 124 > 50 == false
      return (124 * (20 / 100));

    case true: // 124 >= 50 == true, 124 <= 200 == true, thus true && true == true
      return (124 * (15 / 100));

    case false: // 124 > 200 == false
      return (124 * (10 / 100));
  }
}


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Confused about a function returning a function in java script


By : plankalkuel
Date : March 29 2020, 07:55 AM
I hope this helps you . The confusion stems from the difference between invoking/calling a function and having a reference to that function. When you add the () to a function reference you are invoking that function which returns the result of executing that function (and not the function itself).
So in this line:
code :
function c(){
    var d = a();
    d();
}
return b();

AngularJS $http function always returning undefined when returning


By : user3672872
Date : March 29 2020, 07:55 AM
To fix this issue The simplest explanation for why your method makeHttpRequest is returning undefined is that, well, it doesn't actually return a value (where's the return statement?)
However, even if you were returning the result of the call to $http it wouldn't be what you want. The whole point of a callback is to handle an asynchronous operation -- if you want to perform logic based on data received from the HTTP response, it must be done in the callback itself.
code :
dataService.makeHttpRequest = function(requestType, urlString, dataObject) {
    return $http({
        method:requestType, 
        url:$rootScope.serverAddress+urlString, //recommend taking this as a parameter instead of abusing $rootScope
        data:dataObject
    });
};

dataService.makeHttpRequest("GET", "/documents/checkfilename/", null).success(function (data, status, headers, config) {
     //do whatever you want with "data" here
}); //can also chain ".error" here to specify an error callback

Returning early from a function: null, explicit undefined, implicit undefined?


By : user1863682
Date : March 29 2020, 07:55 AM
hop of those help? EsLint have a good rule: consistent-return
code :
// No implicit return with side effects
function foo(callback) {
  const val = callback();
  if (val === true) {
    // Do something if callback returns true
  }
}

Confused about javascript function returning multiple functions with many fat arrow


By : user3145446
Date : March 29 2020, 07:55 AM
Does that help I have problem with my cs homework. I need to access the x value of the function, but my codes is returning me an empty function instead of with the values , You could change head function like this:
code :
const pair = (x, y) => f => f(x, y); 
const head = f => f(a => a)

console.log(head(pair(1,2)))

Confused on how to approach this (writing a function, returning a string)


By : DanielHope
Date : March 29 2020, 07:55 AM
To fix this issue You can use the addition operator + to concatenate strings, and the return statement to return the result of the function call:
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