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Replacing null with 0 when summing values

I have a function that sums my values and everything works fine, but only when all inputs have a value entered. However, I would like default to have 0 assigned to it.so that the function works when at least one value is given . How to do it ?.
var DeductiblepercentageM = thisPointer.entity.getValue('number.DeductiblepercentageM[' + i + ']');
var InsuranceLimitM = thisPointer.entity.getValue('number.InsuranceLimitM[' + i + ']');
var insuranceRaitingM = thisPointer.entity.getValue('number.insuranceRaitingM[' + i + ']');
var InsurerNumberM = thisPointer.entity.getValue('number.InsurerNumberM[' + i + ']');
DeductiblepercentageM = DeductiblepercentageM.replace(",", ".");
DeductiblepercentageM = parseFloat(DeductiblepercentageM)
InsuranceLimitM = InsuranceLimitM.replace(",", ".");
InsuranceLimitM = parseFloat(InsuranceLimitM)
insuranceRaitingM = insuranceRaitingM.replace(",", ".");
insuranceRaitingM = parseFloat(insuranceRaitingM)
InsurerNumberM = InsurerNumberM.replace(",", ".");
InsurerNumberM = parseFloat(InsurerNumberM)
//log the outcome of decimal separator change
var positionSum = +(DeductiblepercentageM + InsuranceLimitM +insuranceRaitingM + InsurerNumberM);
jQ('[id="DeductibleM[' + i + ']"]').val(positionSum);
thisPointer.entity.setValue('DeductibleM[' + i + ']', positionSum);
thisPointer.entity.mergeLocal(true);
if (totalSum != "NaN") {
totalSum = +(totalSum + positionSum).toFixed();
}
}
else {
totalSum = "-";
}

According to #Terry
var InsuranceLimitM = thisPointer.entity.getValue('number.InsuranceLimitM[' + i + ']') || 0;
adding || 0 to the end of the code helps and makes the code count right away

Done / How to make a space printer in javascript

var arg = 5
var string = ' '
for (let i = 0; i < arg; i++) {
console.log('"' + string + '"')
}
I expected the output is:
" " \\ There are 5 spaces between the ""
But the output is:
" "
" "
" "
" "
" "
I am a newbie in javascript. Hope you will help me

you can use method string.padEnd that fill string with blank space until parameter pass to the method
var arg = 5;
var string = ' ';
string = string.padEnd(arg)
console.log('"' + string + '"');
reference : https://developer.mozilla.org/fr/docs/Web/JavaScript/Reference/Global_Objects/String/padEnd

I don't think there is a way to console.log on the same line. You can do something like this
var arg = 5
var string = ' '
var final_string = ''
for (let i = 0; i < arg; i++)
final_string = final_string + string
}
console.log('"' + final_string + '"')

I think you can use or \xa0 for printing spaces
var arg = 5
var string = '\xa0\xa0\xa0\xa0\xa0';
for (let i = 0; i < arg; i++) {
console.log('"' + string + '"')
}

There are many ways to do this. One would be to do it via a loop. That way you can stay flexible. For loop has already been mentioned. here with a foreach loop.
let string = '';
[...Array(5).keys()].forEach(e => string += ' ');
console.log('"' + string + '"');

Convert values - issue

I'm using this code for simple conversion of values between different bases (baseConversion). But there are occurring some issues that I'd love to fix!
"1234" from base 10 to base 3 will get "1200201" and decoded again to base 10 will get "1234" again. So far so good.
Encoding "0001" to base 3 will get "1" and decoding again will get "1" instead of "0001" again. How to fix this?
function convertBase(value, from_base, to_base) {
var range = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ+/'.split('');
var from_range = range.slice(0, from_base);
var to_range = range.slice(0, to_base);
var dec_value = value.split('').reverse().reduce(function(carry, digit, index) {
if (from_range.indexOf(digit) === -1) throw new Error('Invalid digit `' + digit + '` for base ' + from_base + '.');
return carry += from_range.indexOf(digit) * (Math.pow(from_base, index));
}, 0);
var new_value = '';
while (dec_value > 0) {
new_value = to_range[dec_value % to_base] + new_value;
dec_value = (dec_value - (dec_value % to_base)) / to_base;
}
return new_value || '0';
}
let raw = "1234"
document.body.innerHTML += "raw: " + raw + "<br>"
let encoded = convertBase(raw, 10, 3)
document.body.innerHTML += "encoded: " + encoded + "<br>"
let decoded = convertBase(encoded, 3, 10)
document.body.innerHTML += "decoded: " + decoded + "<br><br>"
raw = "0001"
document.body.innerHTML += "raw: " + raw + "<br>"
encoded = convertBase(raw, 10, 3)
document.body.innerHTML += "encoded: " + encoded + "<br>"
decoded = convertBase(encoded, 3, 10)
document.body.innerHTML += "decoded: " + decoded + "<br><br>"
* {
font-family: Arial;
}
i {
font-weight: bold;
color: gray;
}
<b>Note</b>: "1234" from base 10 to base 3 will get <i>"1200201"</i> and decoded again to base 10 will get <i>"1234"</i>
<br><br> Encoding "0001" to base 3 will get <i>"1"</i> and decoding again will get <i>"1"</i> instead of <i>"0001"</i> again.<br><br>
----------------
<br><br><br><br>
Any help would be very appreciated. Thanks a million in advance!

Passing parameters to a form, via JavaScript

I have a form which passes a number of parameters. So far, the stock parameters are being passed:
var params = "title=" + document.getElementById("title").value +
"&url=" + document.getElementById("url").value +
"&snippet=" + document.getElementById("snippet").value +
"&tags=" + document.getElementById("tags").value +
"&status_bookmark=" + document.getElementById("status_bookmark").value +
"&comment=" + document.getElementById("comment").value +
"&status_comment=" + document.getElementById("status_comment").value;
I'm attempting to append additional form elements to this parameter string, which are:
var i, lng = document.getElementById('addbookmark').length;
// If the length property is undefined, then there is only one checkbox.
if (typeof lng === "undefined") {
params + "&topic-link-item-1=" + document.getElementById("topic-link-item-1").value;
params + "&topic-link-comment-box-1=" + document.getElementById("topic-link-comment-box-1").value;
}
else {
for (i = 0; i < lng; i++) {
params + "&topic-link-item-" + i + "=" + document.getElementById("topic-link-item-" + i).value;
params + "&topic-link-comment-box-" + i + "=" + document.getElementById("topic-link-comment-box-" + i).value;
}
}
Here, I've used code taken from another StackOverflow article, and as you can see, I'm trying to build up a series of paired parameters that match the ad hoc form elements I'm generating elsewhere via jQuery, which works.
However, these values appear not be getting passed via the form, while the other form elements are being passed.
Any suggestions?
Update
I've revised the code, per the suggestions, but it's not working:
var i, formObj = document.form['addbookmark'], formObjLng = document.form['addbookmark'].length;
// If the length property is undefined, then there is only one checkbox.
if ((typeof formObjLng !== "undefined")) {
for (i = 0; i < formObjLng; i++) {
if ((formObj.elements['topic-link-item-' + i].type == "checkbox") && (formObj.elements['topic-link-item-' + i].checked)) {
params = params + "&topic-link-item-" + i + "=" + encodeURIComponent(document.getElementById("topic-link-item-" + i)).value;
params = params + "&topic-link-comment-box-" + i + "=" + encodeURIComponent(document.getElementById("topic-link-comment-box-" + i)).value;
}
}
}
As for the form, it's simply a form with an ID of "addbookmark", and to again state what I said earlier, everything else works with the exception of what Im attempting here.

There are 2 issues with your code. You need to URL encode the values using the encodeURIComponent function. Also you need to assign the result back to the params variable when concatenating:
var params =
"title=" + encodeURIComponent(document.getElementById("title").value) +
"&url=" + encodeURIComponent(document.getElementById("url").value) +
"&snippet=" + encodeURIComponent(document.getElementById("snippet").value) +
"&tags=" + encodeURIComponent(document.getElementById("tags").value) +
"&status_bookmark=" + encodeURIComponent(document.getElementById("status_bookmark").value) +
"&comment=" + encodeURIComponent(document.getElementById("comment").value) +
"&status_comment=" + encodeURIComponent(document.getElementById("status_comment").value);
and also for the other values that you are adding:
var i, lng = document.getElementById('addbookmark').length;
// If the length property is undefined, then there is only one checkbox.
if (typeof lng === "undefined") {
params += "&topic-link-item-1=" + encodeURIComponent(document.getElementById("topic-link-item-1").value);
params += "&topic-link-comment-box-1=" + encodeURIComponent(document.getElementById("topic-link-comment-box-1").value);
}
else {
for (i = 0; i < lng; i++) {
params += "&topic-link-item-" + i + "=" + encodeURIComponent(document.getElementById("topic-link-item-" + i).value);
params += "&topic-link-comment-box-" + i + "=" + encodeURIComponent(document.getElementById("topic-link-comment-box-" + i).value);
}
}
Notice how:
params += "&topic-link-item-" + i + "=" + encodeURIComponent(document.getElementById("topic-link-item-" + i).value);
which is equivalent to:
params = params + "&topic-link-item-" + i + "=" + encodeURIComponent(document.getElementById("topic-link-item-" + i).value);
is not the same as what you were doing initially:
params + "&topic-link-item-" + i + "=" + encodeURIComponent(document.getElementById("topic-link-item-" + i).value);
You were simply concatenating 2 values and never assigning the result back to the params variable.

I'm pretty sure Javascript doesnt' allow text append the way you are doing it.
Should be
params = params +

Interesting behavior in my US Number formatting code

I'm trying to make 10 digits look like a US telephone number (i.e.(###) ###-####). My code does accomplish this first goal, but it also does something I can't quite figure out. When typing in the digits, the characters "()" show up before typing any other digits. I want the open parenthesis to appear first and the closing parathesis to appear after entering the third digit. Please don't give me a new solution; try to pin point the issue I'm describing.
<script type="text/javascript">
$('.drumbi-caller-number').live('keydown', function (event) {
if (event.keyCode == 8 || event.keyCode == 37 || event.keyCode == 39) {
} else {
inputval = $(this).val();
var string = inputval.replace(/[^0-9]/g, "");
var first3 = string.substring(0,3);
var next3 = string.substring(3,6);
var next4 = string.substring(6,9);
var string = ("(" + first3 + ")" + next3 + "-" + next4);
$(this).val(string);
}
});
</script>
Here's a jsFiddle that displays this behavior: http://jsfiddle.net/bigthyme/j6kHn/3/

replace keydown with keyup, on keydown the value of the input element isn't updated
also set your string conditionally, only if long enough:
var string = string.length > 2 ? ("(" + first3 + ")" + next3 + "-" + next4) : first3;
here is the code: http://jsfiddle.net/j6kHn/10
btw: you should also replace .live(...) with .on(...) as .live() is deprecated..

You need to check the length of first3 before appending the paren:
var string = ("(" + first3 + ((first3.length>=3)?")":"") + next3 + "-" + next4);
And although not in your question, you can do the same for the hyphen:
var string = ("(" + first3 +
// only append the ) if the you have 3+ chars
((first3.length>=3)?")":"") +
next3 +
// only append the - if the you have 6+ chars
(((first3+next3).length>=6)?"-":"") +
next4);
You should also use .on() instead of live();
See it all working in this jsFiddle

Go with
$('.foo').on('keyup', function (event) {
$(this).val($(this).val().replace(/\D/g, "").replace(/(\d{0,3})(\d{0,3})(\d{0,4}).*/, "($1) $2-$3"));
});
Test this code here.

Try using this code, it should fix all of your issues:
Demo: http://jsfiddle.net/bN6Rh/3/
jQuery:
$('.foo').on('keyup', function(event) {
if (event.keyCode == (8 || 37 || 39)) { }
else {
inputval = $(this).val();
var string = inputval.replace(/[^0-9]/g, "");
var first3 = string.substring(0, 3);
var next3 = " " + string.substring(3, 6);
var next4 = string.substring(6, 10);
if (string.length < 3) { // Less than 3
var string = "(" + first3;
}
else if (string.length > 2 && string.length < 7) { // More than 2 and less than 7
var string = "(" + first3 + ")" + next3;
}
else { // Anything else
var string = "(" + first3 + ")" + next3 + "-" + next4;
}
$(this).val(string);
}
});​
The problem was that you weren't checking the number of characters so as soon as anything was entered it put in ()-, the above code also adds the space you mentioned wanting.
The code could of course be more compressed:
$('.foo').on('keyup', function(e) {
if (e.keyCode == (8 || 37 || 39));
else {
var str = this.value.replace(/[^0-9]/g, "");
var f3 = str.substring(0, 3),
n3 = " " + str.substring(3, 6),
n4 = str.substring(6, 10);
if (str.length<3) str = "(" + f3;
else if (str.length>2&&str.length<7) str="("+f3+")"+n3;
else str="("+f3+")"+n3+"-"+n4;
this.value = str;
}
});​