Ryan - Llaver Ryan - Llaver - 2 months ago 5
AngularJS Question

How can I write this javascript logic code into a more efficient/compact way?

In a project I am working on I have 21 buttons that all have active and inactive states. The state of certain buttons is affected by other buttons being pressed as well as that button being pressed. In my html I use ng-click to call a function updateActiveButtons(num) to activate or deactivate certain buttons.

The best way I could think of was to use an array of 21 elements, all of which were set to false by default and then changed when they were pressed.

The problem is that my code is UGLY and I know that there has to be a much better way to logic it out.

Here is my updateActiveButtons function:

/* Array for active buttons
0: Company Name 1: Country 2: Industry 3: Search 4: Company Name - Seller Name 5: Company Name - Buyer Name 6: Country - USA 7: Country - China 8: Country - Israel
9: Country - Russia 10: Country - India 11: Country - Japan 12: Industry - Tech 13: Industry - Consumer 14: Industry - Pharma 15: Industry - Financial 16: Industry - Biotech 17: Industry - Industrial
18: Date 19: Valuation 20: Industry - Business
*/
$scope.activeButtonArray = new Array(21);
for (var i = 0; i < $scope.activeButtonArray.length; i++) { $scope.activeButtonArray[i] = false; }
//pos = position in array
$scope.updateActiveButtons = function(pos) {
console.log($scope.activeButtonArray[20]);
if(pos != 0 || pos != 1 || pos != 2 || pos != 3 || pos != 4 || pos != 5) {
$scope.activeButtonArray[pos] = !$scope.activeButtonArray[pos];
} else if(pos == 3 && !$scope.activeButtonArray[pos]) {
$scope.activeButtonArray[pos] = true;
} else if(pos == 3 && $scope.activeButtonArray[pos]) {
$scope.activeButtonArray[pos] = false;
}
if(pos == 18 || pos == 19) {
$scope.activeButtonArray[0] = false;
if($scope.activeButtonArray[6] == false && $scope.activeButtonArray[7] == false && $scope.activeButtonArray[8] == false && $scope.activeButtonArray[9] == false && $scope.activeButtonArray[10] == false && $scope.activeButtonArray[11] == false) {
$scope.activeButtonArray[1] = false;
}
if($scope.activeButtonArray[12] == false && $scope.activeButtonArray[13] == false && $scope.activeButtonArray[14] == false && $scope.activeButtonArray[15] == false && $scope.activeButtonArray[16] == false && $scope.activeButtonArray[17] == false && $scope.activeButtonArray[20] == false) {
$scope.activeButtonArray[2] = false;
}
}
if(pos == 0) {
$scope.activeButtonArray[0] = true;
if($scope.activeButtonArray[4] || $scope.activeButtonArray[5]) {
$scope.activeButtonArray[0] = true;
}
if($scope.activeButtonArray[6] == false && $scope.activeButtonArray[7] == false && $scope.activeButtonArray[8] == false && $scope.activeButtonArray[9] == false && $scope.activeButtonArray[10] == false && $scope.activeButtonArray[11] == false) {
$scope.activeButtonArray[1] = false;
}
if($scope.activeButtonArray[12] == false && $scope.activeButtonArray[13] == false && $scope.activeButtonArray[14] == false && $scope.activeButtonArray[15] == false && $scope.activeButtonArray[16] == false && $scope.activeButtonArray[17] == false && $scope.activeButtonArray[20] == false) {
$scope.activeButtonArray[2] = false;
}
if($scope.search.text == undefined || $scope.search.text == '') {
$scope.activeButtonArray[3] = false;
}
}
if(pos == 1) {
if($scope.activeButtonArray[4] == false && $scope.activeButtonArray[5] == false) {
$scope.activeButtonArray[0] = false;
}
if($scope.activeButtonArray[6] == true || $scope.activeButtonArray[7] == true || $scope.activeButtonArray[8] == true || $scope.activeButtonArray[9] == true || $scope.activeButtonArray[10] == true || $scope.activeButtonArray[11] == true) {
$scope.activeButtonArray[1] = true;
}
if($scope.activeButtonArray[12] == false && $scope.activeButtonArray[13] == false && $scope.activeButtonArray[14] == false && $scope.activeButtonArray[15] == false && $scope.activeButtonArray[16] == false && $scope.activeButtonArray[17] == false && $scope.activeButtonArray[20] == false) {
$scope.activeButtonArray[2] = false;
}
if($scope.search.text == undefined || $scope.search.text == '') {
$scope.activeButtonArray[3] = false;
}
}
if(pos == 2) {
if($scope.activeButtonArray[4] == false && $scope.activeButtonArray[5] == false) {
$scope.activeButtonArray[0] = false;
}
if($scope.activeButtonArray[6] == false && $scope.activeButtonArray[7] == false && $scope.activeButtonArray[8] == false && $scope.activeButtonArray[9] == false && $scope.activeButtonArray[10] == false && $scope.activeButtonArray[11] == false) {
$scope.activeButtonArray[1] = false;
}
if($scope.activeButtonArray[12] == true || $scope.activeButtonArray[13] == true || $scope.activeButtonArray[14] == true || $scope.activeButtonArray[15] == true || $scope.activeButtonArray[16] == true || $scope.activeButtonArray[17] == true || $scope.activeButtonArray[20] == true) {
$scope.activeButtonArray[2] = true;
}
if($scope.search.text == undefined || $scope.search.text == '') {
$scope.activeButtonArray[3] = false;
}
}
if(pos == 3) {
if($scope.activeButtonArray[4] == false && $scope.activeButtonArray[5] == false) {
$scope.activeButtonArray[0] = false;
}
if($scope.activeButtonArray[6] == false && $scope.activeButtonArray[7] == false && $scope.activeButtonArray[8] == false && $scope.activeButtonArray[9] == false && $scope.activeButtonArray[10] == false && $scope.activeButtonArray[11] == false) {
$scope.activeButtonArray[1] = false;
}
if($scope.activeButtonArray[12] == false && $scope.activeButtonArray[13] == false && $scope.activeButtonArray[14] == false && $scope.activeButtonArray[15] == false && $scope.activeButtonArray[16] == false && $scope.activeButtonArray[17] == false && $scope.activeButtonArray[20] == false) {
$scope.activeButtonArray[2] = false;
}
}
if(pos == 4) {
$scope.activeButtonArray[4] = true;
$scope.activeButtonArray[5] = false;
}
if(pos == 5) {
$scope.activeButtonArray[4] = false;
$scope.activeButtonArray[5] = true;
}
}


I have a lot of repeated code that comes out in a way that just doesn't feel very well done or professional. I wouldn't be proud to send this to a client. Does anyone have any suggestions as to how I could make this better?

Answer

On way would be to replace entire conditions (or blocks) by methods/functions

so

    if($scope.activeButtonArray[4] || $scope.activeButtonArray[5]) {
        $scope.activeButtonArray[0] = true;
    }

becomes

if (somethingIsSomething($scope))

This has the added benefit of be much more self-documenting so you can "read" what you're doing.

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