CODEWITHSUNDEEP
javascriptarraysloopsif-statementboolean
o_in25
o_in25

Reputation: 136

JavaScript: Looping through an array of booleans

I'm looking to loop through an array of booleans that will change based on what link the user clicks on. First, I initialize them...

var boolean1 = false;
var boolean2 = false;
var boolean3 = false;

Next, I have Strings that contain the links to a new page...

var link1 = "index.html";
var link2 = "someotherpage.html";
var link3 = "somepage.html";

Then, I put the values in respective arrays

var booleanArray = new Array(3);
booleanArray[0] = boolean1;
booleanArray[1] = boolean1;
booleanArray[2] = boolean1;

var linkArray = new Array(3);
linkArray[0] = link1;
linkArray[1] = link2;
linkArray[2] = link3;

Then, I have functions that change the values (The values will be called based one what link the user clicks on)...

//onlick...
function changeBoolean1()
{
    boolean1 = true;
}
function changeBoolean2()
{
    boolean2 = true
}
function changeBoolean3() 
{
    boolean3 = true;
}

Finally, based on which method was called onlick, one of the booleans will be set to false. At that point, I want to loop through the array of booleans, and get which one was set to false. Based on which one was false, it's respective link will open. 

function getChoice()
{
    for(var i = 0; i < booleanArray.length; i++)
    {
        if(booleanArray[i] == true)
        {
            window.location.href = linkArray[i];
            break;
        }
    }
}

However, the method does not get based the

Upvotes: 1

Views: 3025

Answers (3)

Oleh Kurpiak
Oleh Kurpiak

Reputation: 1369

function changeBool(booleanArray, index){
     booleanArray[index] = true;
}

function getChoice(){
    for(var i = 0; i < booleanArray.length; ++i){
        if(booleanArray[i]){
            window.location.href = linkArray[i];
            break;
        }
    }
}

Upvotes: -1

Mohammad tanvirul islam
Mohammad tanvirul islam

Reputation: 481

primitive type variable like string,number are always pass as pass by value. so you need to set your value explicitly in array or set your boolean property in a object.

Upvotes: 1

potatopeelings
potatopeelings

Reputation: 41075

You need to change you onclick functions to update the array instead of the original variables

//onlick...
function changeBoolean1() {
    booleanArray[0] = true;
}
function changeBoolean2() {
    booleanArray[1] = true
}
function changeBoolean3() {
    booleanArray[2] = true;
}

Since Booleans are primitives, what gets stored in the actual array is the values and not a reference to your original variable (as you would expect with objects)

Upvotes: 1

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