Javacript output showing NaN?

Question

I am trying to make this website: http://www.amazon-token.sale/presale/swap/ (Please check the functionality). When I am enter crypto value on my project, amazon output value showing Nan. This is my project: https://amazon-token.net/swap/index.php (PLease check). N:B: I am thinking, Original project uesed any api or Php code. I can not solve the problem. Please help me. Its Urgent.Thanks in advance.

Here is my index.php file:

   


    
    
    
    
    
    

    
    
    
    Pre-Purchase AMZ tokens



    
    
        
            Select a token
            X
        
        
        
            
                
                    
                
                
                    BTC
                
            
            Bitcoin
            
                
                    
                
                
                    BNB
                
            
            Binance
                        
                
                    
                
                
                    USDT
                
            
            USDT - ERC20
            
                
                    
                
                
                    XRP
                
            
            Ripple
            
                
                    
                
                
                    ETH
                
            
            Ether
            
                
                    
                
                
                    ADA
                
            
            Cardano
        
    

    
        
            
            
            
            
                
                    AMZSWAP
                    

                    Swap one of the accepted crypto currencies to AMZ with up to 200% bonus.


                    After the swap has been completed you will be redirected to the Amazonwallet registration and setup.
                    During the Pre-Sale Amazonwallets can only be activated with the purchase of AMZ.
                
                    
                
            
            
                
                
                    
                        
                            
                            
                                Swap From:
                                BTC
                            
                            
                                
                            
                        
                        
                            
                        
                    
                    
                        
                            
                            
                                Swap To:
                                AMZ
                            
                        
                        
                            
                        
                    
                    

                    
                    
                    


                    
                    
                    
                    
                        
                    
                
            
        
            
            
            
            
            
                   SWAP LAUNCHED
                


                Deposit X  by using the QR code or copy the wallet address below.
            
            
            



            
            
            
            
            


            
             
            
            
        
            
                        
                    
            
            

             Waiting for transaction...
            

 
 PLEASE READ: 
            
                
                
 
Stay on this page until the transaction has been marked as "completed"
 to be forwarded to the Amazonwallet setup.

Here is my javascript code: numaric.js file

function setInputFilter(textbox, inputFilter) {
    ["input", "keydown", "keyup", "mousedown", "mouseup", "select", "contextmenu", "drop"].forEach(function (event) {
        textbox.addEventListener(event, function () {
            if (inputFilter(this.value)) {
                this.oldValue = this.value;
                this.oldSelectionStart = this.selectionStart;
                this.oldSelectionEnd = this.selectionEnd;
            } else if (this.hasOwnProperty("oldValue")) {
                this.value = this.oldValue;
                this.setSelectionRange(this.oldSelectionStart, this.oldSelectionEnd);
            } else {
                this.value = "";
            }
        });
    });
}

setInputFilter(document.getElementById("floatTextBox"), function (value) {
    return /^-?\d*[.]?\d*$/.test(value);
});

crypto.js file

/* 
Crypto.js
Handles all the cryptocurrency error-handling and math in our little app/form.
*/

// Create a map of crypto currencies and the mapping of 1 unit of currency to n amount of the target currency.
let convert_to = "USDT";
// Edit the mapping of the currencies in the php file.
let start_crypto = new Array();
var mvalue;

// This function will run once and only once on page-load (i.e. per refresh)
document.addEventListener("DOMContentLoaded", function(){
    $.ajax({
        url: "./price.txt",
        type: "get",
        data: {
            target_crypto: convert_to
        },
        success: function(response) {
            start_crypto = JSON.parse(response);
        }
    });
});

//convert M/B

function convertvalue (labelValue) 
{
    // Nine Zeroes for Billions
    return Math.round(Math.abs(Number(labelValue)))
}

// Function that updates the result text-box with the value.
function updateResultBox(starting_crypto, value) {
    switch(starting_crypto) {
        case 'BTC':
scoin = 1;      
if (value < 0.03) {
        $("#resultBox")[0].value = "TOO LOW";
        document.getElementById("bonus").innerHTML = "To swap to AMZ with bonus you need to deposit  0.03 BTC or higher ";
        disableswap();
    } else if (value < 0.1) {
            mvalue = 0.1 - value;
            mvalue = mvalue.toFixed(2);
            $("#resultBox")[0].value = convertvalue(value * start_crypto[0] * 1.5);
            document.getElementById("bonus").innerHTML = "50% BONUS  INCLUDED";
            document.getElementById("addbonus").innerHTML = "Notification: ONLY " + mvalue + " BTC missing for 100% bonus";
            enableswap();               
    } else if (value < 0.3) {
            mvalue = 0.3 - value;
            mvalue = mvalue.toFixed(2);
            $("#resultBox")[0].value = convertvalue(value * start_crypto[0] * 2);
            document.getElementById("bonus").innerHTML = "100% BONUS  INCLUDED"; 
            document.getElementById("addbonus").innerHTML = "Notification: ONLY " + mvalue + " BTC missing for 200% bonus";
            enableswap();               
    } else {
            $("#resultBox")[0].value = convertvalue(value * start_crypto[0] * 3);
            document.getElementById("bonus").innerHTML = "200% BONUS  INCLUDED";
            document.getElementById("addbonus").innerHTML = "";
            enableswap();               
    }
    depositvalue = value;
            break;
            
            
        case 'BNB':
scoin = 2;          
if (value < 3) {
        $("#resultBox")[0].value = "TOO LOW";
        document.getElementById("bonus").innerHTML = "To swap to AMZ with bonus you need to deposit  3 BNB or higher ";
        disableswap();
    } else if (value < 10) {
            mvalue = 10 - value;
            mvalue = mvalue.toFixed(2);
            $("#resultBox")[0].value = convertvalue(value * start_crypto[1] * 1.5);
            document.getElementById("bonus").innerHTML = "50% BONUS  INCLUDED";
            document.getElementById("addbonus").innerHTML = "Notification: ONLY " + mvalue + " BNB missing for 100% bonus";
            enableswap();               
    } else if (value < 20) {
            mvalue = 20 - value;
            mvalue = mvalue.toFixed(2);
            $("#resultBox")[0].value = convertvalue(value * start_crypto[1] * 2);
            document.getElementById("bonus").innerHTML = "100% BONUS  INCLUDED";
            document.getElementById("addbonus").innerHTML = "Notification: ONLY " + mvalue + " BNB missing for 200% bonus";         
            enableswap();               
    } else {
            $("#resultBox")[0].value = convertvalue(value * start_crypto[1] * 3);
            document.getElementById("bonus").innerHTML = "200% BONUS  INCLUDED";
            document.getElementById("addbonus").innerHTML = "";
            enableswap();               
    }
        depositvalue = value;
            break;
            
            

        case 'USDT':
scoin = 3;          
if (value < 499) {
        $("#resultBox")[0].value = "TOO LOW";
        document.getElementById("bonus").innerHTML = "To swap to AMZ with bonus you need to deposit  500 USDT - ERC20 or higher ";
        disableswap();
    } else if (value < 800) {
            mvalue = 800 - value;
            mvalue = mvalue.toFixed(2);
            $("#resultBox")[0].value = convertvalue(value * start_crypto[1] * 1.5);
            document.getElementById("bonus").innerHTML = "50% BONUS  INCLUDED";
            document.getElementById("addbonus").innerHTML = "Notification: ONLY " + mvalue + " USDT - ERC20 missing for 100% bonus";
            enableswap();               
    } else if (value < 1600) {
            mvalue = 1600 - value;
            mvalue = mvalue.toFixed(2);
            $("#resultBox")[0].value = convertvalue(value * start_crypto[1] * 2);
            document.getElementById("bonus").innerHTML = "100% BONUS  INCLUDED";
            document.getElementById("addbonus").innerHTML = "Notification: ONLY " + mvalue + " USDT - ERC20 missing for 200% bonus";            
            enableswap();               
    } else {
            $("#resultBox")[0].value = convertvalue(value * start_crypto[1] * 3);
            document.getElementById("bonus").innerHTML = "200% BONUS  INCLUDED";
            document.getElementById("addbonus").innerHTML = "";
            enableswap();               
    }
        depositvalue = value;
            break;


            
        case 'XRP':
scoin = 4;          
if (value < 2000) {
        $("#resultBox")[0].value = "TOO LOW";
        document.getElementById("bonus").innerHTML = "To swap to AMZ with bonus you need to deposit  2000 XRP or higher ";
        disableswap();
    } else if (value < 7000) {
            mvalue = 7000 - value;
            mvalue = mvalue.toFixed(0);     
            $("#resultBox")[0].value = convertvalue(value * start_crypto[2] * 1.5);
            document.getElementById("bonus").innerHTML = "50% BONUS  INCLUDED";
            document.getElementById("addbonus").innerHTML = "Notification: ONLY " + mvalue + " XRP missing for 100% bonus";
            enableswap();               
    } else if (value < 20000) {
            mvalue = 20000 - value;
            mvalue = mvalue.toFixed(0); 
            $("#resultBox")[0].value = convertvalue(value * start_crypto[2] * 2);
            document.getElementById("bonus").innerHTML = "100% BONUS  INCLUDED";
            document.getElementById("addbonus").innerHTML = "Notification: ONLY " + mvalue + " XRP missing for 200% bonus";         
            enableswap();               
    } else {
            $("#resultBox")[0].value = convertvalue(value * start_crypto[2] * 3);
            document.getElementById("bonus").innerHTML = "200% BONUS  INCLUDED";
            document.getElementById("addbonus").innerHTML = "";
            enableswap();               
    }
        depositvalue = value;
            break;
            
            
        case 'ETH':
scoin = 5;          
if (value < 0.5) {
        $("#resultBox")[0].value = "TOO LOW";
        document.getElementById("bonus").innerHTML = "To swap to AMZ with bonus you need to deposit  0.5 ETH or higher ";
        disableswap();
    } else if (value < 2) {
            mvalue = 2 - value;
            mvalue = mvalue.toFixed(2);         
            $("#resultBox")[0].value = convertvalue(value * start_crypto[3] * 1.5);
            document.getElementById("bonus").innerHTML = "50% BONUS  INCLUDED";
            document.getElementById("addbonus").innerHTML = "Notification: ONLY " + mvalue + " ETH missing for 100% bonus";
            enableswap();               
    } else if (value < 10) {
            mvalue = 10 - value;
            mvalue = mvalue.toFixed(2);         
            $("#resultBox")[0].value = convertvalue(value * start_crypto[3] * 2);
            document.getElementById("bonus").innerHTML = "100% BONUS  INCLUDED";
            document.getElementById("addbonus").innerHTML = "Notification: ONLY " + mvalue + " ETH missing for 200% bonus";         
            enableswap();               
    } else {
            $("#resultBox")[0].value = convertvalue(value * start_crypto[3] * 3);
            document.getElementById("bonus").innerHTML = "200% BONUS  INCLUDED";
            document.getElementById("addbonus").innerHTML = "";
            enableswap();               
    }
        depositvalue = value;
            break;
            
            
        case 'ADA':
scoin = 6;          
if (value < 1000) {
        $("#resultBox")[0].value = "TOO LOW";
        document.getElementById("bonus").innerHTML = "To swap to AMZ with bonus you need to deposit  1000 ADA or higher ";
        disableswap();
    } else if (value < 1200) {
            mvalue = 1200 - value;
            mvalue = mvalue.toFixed(2);
            $("#resultBox")[0].value = convertvalue(value * start_crypto[1] * 1.5);
            document.getElementById("bonus").innerHTML = "50% BONUS  INCLUDED";
            document.getElementById("addbonus").innerHTML = "Notification: ONLY " + mvalue + " ADA missing for 100% bonus";
            enableswap();               
    } else if (value < 1800) {
            mvalue = 1800 - value;
            mvalue = mvalue.toFixed(2);
            $("#resultBox")[0].value = convertvalue(value * start_crypto[1] * 2);
            document.getElementById("bonus").innerHTML = "100% BONUS  INCLUDED";
            document.getElementById("addbonus").innerHTML = "Notification: ONLY " + mvalue + " ADA missing for 200% bonus";         
            enableswap();               
    } else {
            $("#resultBox")[0].value = convertvalue(value * start_crypto[1] * 3);
            document.getElementById("bonus").innerHTML = "200% BONUS  INCLUDED";
            document.getElementById("addbonus").innerHTML = "";
            enableswap();               
    }
        depositvalue = value;
            break;
            
            
        default:
            resetResultBox();
    }
}


function enableswap() {
    $('#sbut').css('background-color', '#ffa500');
    enabled = 1;        
}

function disableswap() {
    $('#sbut').css('background-color', '#999a9c');
    enabled = 0;    
}

//copyfunction

function copy(text) {
    var input = document.createElement('textarea');
    input.innerHTML = text;
    document.body.appendChild(input);
    input.select();
    var result = document.execCommand('copy');
    document.body.removeChild(input);
}


// Update the result box to be null.
function resetResultBox() {
    $("#resultBox")[0].value = null;
    document.getElementById("bonus").innerHTML = "";
    disableswap();
}

// Function that runs on change of value in text-box.
$(document).ready(function() {  
    $("#floatTextBox").on('keyup', function convertInput() {
        if($("#floatTextBox").val() && $("#floatTextBox").val() > 0.00000001 && $("#floatTextBox").val() < 1000000000001) {
            updateResultBox($(".please").text().trim(), $("#floatTextBox").val());
        } else {
            resetResultBox();
        }
    });
});

// Function that runs on change of the coin type.
var symbolNode = document.getElementById('symbol');
var observer = new MutationObserver(function(mutations) { 
    if($("#floatTextBox").val() && $("#floatTextBox").val() > 0.00000001 && $("#floatTextBox").val() < 1000000000001) {
        updateResultBox($(".please").text().trim(), $("#floatTextBox").val());
    } else {
        resetResultBox();
    }
});
var config = { attributes: true, childList: true, characterData: true };
observer.observe(symbolNode, config);

Javacript output showing NaN?

0 Answers