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comparing a javascript array with a result

开发者 https://www.devze.com 2023-02-18 11:58 出处:网络
I have the below code which checks my dynamically produced offhire boxes to see if there is an integer value present onsubmit. If i were to check the sum of the array at the end to see if all boxes ad

I have the below code which checks my dynamically produced offhire boxes to see if there is an integer value present onsubmit. If i were to check the sum of the array at the end to see if all boxes added together was bigger than 0 how would i accomplish that.

function validateoffhire(form) {
    var num1 = document.getElementById('num1');
    var test2Regex = /^[0-9 ]*$/;  
    var num2 = num1.value;

    var i=0;
    var offhire1 = [];
    for(var i = 0; i < num2; i++) {
        offhire1[i] = document.getElementById('offhire1' + i);
        var of开发者_开发问答fhire2 = offhire1[i].value;
        //if(nameRegex.match(pro[i].value)){

        if(!offhire2.match(test2Regex)){
            //alert("You entered: " + pro[i].value)
            inlineMsg('offhire1' + i,'This needs to be an integer',10);
            return false;
        }
    }
    return true;
}

many thanks for any help

steve


Change your code by adding an accumulator inside your loop, then check the accumulator outside the loop:

function validateoffhire(form) {
  var num1 = document.getElementById('num1');
  var test2Regex = /^[0-9 ]*$/;  
  var num2 = num1.value;
  var accumulator = 0;

  var i=0;
  var offhire1 = [];
  for(var i = 0; i < num2; i++) {
    offhire1[i] = document.getElementById('offhire1' + i);
    var offhire2 = offhire1[i].value;
    //if(nameRegex.match(pro[i].value)){

    if(!offhire2.match(test2Regex)){
      inlineMsg('offhire1' + i,'This needs to be an integer',10);
      return false;
    }
    else{
      accumulator += parseInt(offhire2);
    }
  }
  if(accumulator > 0){

    return true;
  }
}


You are saving all the values in an array. so u can add up all the values using a loop.

var totalValue = 0; 
var i=0;
while(offhire1[i])
{
totalValue += offhire1[i] ;
i++
}
if(totalValue)
{
// Non zero
}

Could you be please be more specific if im wrong.


You have to:

  • Convert input values to a Number
  • Use the forEach function of an Array to add the values together.

Like:

 function validateoffhire(form) {
var num1 = document.getElementById('num1');
var test2Regex = /^[0-9 ]*$/;  
var num2 = num1.value;

var i=0;
    var offhire1 = [];
for(var i = 0; i < num2; i++) {
offhire1[i] = parseFloat(document.getElementById('offhire1' + i));
var offhire2 = offhire1[i].value;
  //if(nameRegex.match(pro[i].value)){

  if(!offhire2.match(test2Regex)){
        //alert("You entered: " + pro[i].value)
inlineMsg('offhire1' + i,'This needs to be an integer',10);
return false;
}
}
var sum = 0;
offhire1.forEach(function(a) {sum+=a});
// here, sum is the sum of offhire1's values
return true;
}
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