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JavaScript. Dictionary Key is not a String?

Just a simple question. Having the next piece of code:
function addMarker(data) {
var types = {'meet': 380 + ',' + 95, 'vegetable': 285 + ',' + 0};
var selection = data.type;
console.log(types["meet"]);
console.log(types[selection]);
console.log(selection);
and having these results in the console:
380,95
undefined
Meet
I'd need to have in the second case also a 380,95. selection is supposed to be a string coming from the data object. Somehow when using this string like a dictionary key it's not working. How could I do then to get different values from types in some dynamic way like this?
Just to clarify, I'm not trying to get float numbers, what I need are two numbers separated by a ,

Javascript is case sensitive. Object has property meet whereas value of Selection is Meet. Hence, you will need to update your code to following
console.log(types[selection.toLowerCase()]);
For reference, String.toLowerCase()

Please check if
data.type === "Meet" // true
It should be "meet".
Btw. it is spelled meat, not meet.

Just to be clear
addMarker({'type':'meet'}) // would produce correct result
addMarker({'type':'Meet'}) // would produce result result you see
To correct this you could use lower Case String ,as provided by Nikhil
function addMarker(data) {
var types = {'meet': 380 + ',' + 95, 'vegetable': 285 + ',' + 0};
var selection = data.type;
selection = selection.toLowerCase();
console.log(types["meet"]);
console.log(types[selection]);
console.log(selection);
}
Or simply make proper call

Google Script Errror: "Incorrect range width" when using setValues

Try as I might I CANNOT decipher the problem that I'm having writing new rows to a sheet. I've done this several times and I've debugged this thoroughly using Logger.log, but I just can't solve it. Here's a summary of what I'm doing, a code snippet, and a log:
What I'm doing:
Adding rows to a sheet (below existing rows)
73 new rows are stored stored in array: Grade Rows
When attempt to write the new rows to the sheet, get this error:
Incorrect range width, was 1 should be 26
Here’s the code including some Logger.logs:
var BeginningRow = LastSGRowSheet + 1;
var EndingRow = BeginningRow + SGPushKtr -1;
Logger.log("BeginningRow =>" + BeginningRow + "<=, SGPushKtr =>" + SGPushKtr + "<=, Ending Row =>" + EndingRow + "<=");
var GradesRangeString = 'A' + BeginningRow + ':' + LastStudentGradesColumnLetter + EndingRow;
Logger.log("GradesRangeString =>" + GradesRangeString + "<=");
StudentGradeSheet.getRange(GradesRangeString).setValues(GradeRows);
The error occurs in that last line of code.
Here’s the log:
17-12-31 11:51:15:763 EST] BeginningRow =>364<=, SGPushKtr =>73<=, Ending Row =>436<=
[17-12-31 11:51:15:764 EST] GradesRangeString =>A364:Z436<=

Let's say that your data array is dA then the number of rows in that array is dA.length and assuming its a rectangular array then the number of columns is vA[0].length. So your output command has to be some thing like this.
sheet.getRange(firstRow,firstColumn,dA.length,dA[0].length).setValues(dA);
If you'd like to learn a little more about this problem check this out.
You could also append each row to the current sheet one row at a time in loop.

It's hard to know why GradeRows doesn't match your range without seeing all of your code.
Using Cooper's getRange arguments will likely reveal your problem, and will prevent you from having to update your row and column variables when you make changes to your code. Another issue that gets me sometimes is the fact that the setValues array needs to be exactly the same dimensions as the range. If one row has a different length, it will fail. If the logic I use to create row arrays can result in different lengths, I use the function below to make sure my arrays are symmetric before writing them to a sheet. It is also helpful for debugging.
/**
* Takes a 2D array with element arrays with differing lengths
* and adds empty string elements as necessary to return
* a 2D array with all element arrays of equal length.
* #param {array} ar
* #return {array}
*/
function symmetric2DArray(ar){
var maxLength;
var symetric = true;
if (!Array.isArray(ar)) return [['not an array']];
ar.forEach( function(row){
if (!Array.isArray(row)) return [['not a 2D array']];
if (maxLength && maxLength !== row.length) {
symetric = false;
maxLength = (maxLength > row.length) ? maxLength : row.length;
} else { maxLength = row.length }
});
if (!symetric) {
ar.map(function(row){
while (row.length < maxLength){
row.push('');
}
return row;
});
}
return ar
}

How about using appendRow()? That way you don't need to do lots of calculations about the range. You can loop through your data and add it row by row. Something like this:
myDataArr = [[1,2],[3,4],[5,6]]
myDataArr.forEach(function(arrayItem){
sheet.appendRow([arrayItem[0],arrayItem[1]])
})
// This will output to the sheet in three rows.
// [1][2]
// [3][4]
// [5][6]

how to add numbers with an infinite number of digits using column addition?

I am trying to develop the addition program using column addition in javascript, For e.g: 53,22 , we add numbers from the right 3+2 and 5+2 finally results in 75, the main problem is with large numbers i am trying to develop a program which can implement addition of large numbers.so that i don't get gibberish like 1.26E+9, when adding large numbers. i tried doing it by defining the code like below
function add(a,b)
{
return (Number(a) + Number(b)).toString();
}
console.log(add('58685486858601586', '8695758685'));
i am trying to get the added number without getting the gibberish like 5.8685496e+16

You can add them digit by digit.
function sumStrings(a, b) { // sum for any length
function carry(value, index) { // cash & carry
if (!value) { // no value no fun
return; // leave shop
}
this[index] = (this[index] || 0) + value; // add value
if (this[index] > 9) { // carry necessary?
carry.bind(this)(this[index] / 10 | 0, index + 1); // better know this & go on
this[index] %= 10; // remind me later
}
}
var array1 = a.split('').map(Number).reverse(), // split stuff and reverse
array2 = b.split('').map(Number).reverse(); // here as well
array1.forEach(carry, array2); // loop baby, shop every item
return array2.reverse().join(''); // return right ordered sum
}
document.write(sumStrings('58685486858601586', '8695758685') + '<br>');
document.write(sumStrings('999', '9') + '<br>');
document.write(sumStrings('9', '999') + '<br>');
document.write(sumStrings('1', '9999999999999999999999999999999999999999999999999999') + '<br>');

I would keep all values as numbers until done with all the calculations. When ready to display just format the numbers in any way you want. For example you could use toLocaleString.

There are several libraries for that
A good rule of thumb is to make sure you do research for libraries before you actually go ahead and create you're own proprietary implementation of it. Found three different libraries that all solve your issue
bignumber.js
decimal.js
big.js
Example
This is how to use all three of the libraries, BigNumber coming from the bignumber.js library, Decimal from decimal.js and Big from big.js
var bn1 = new BigNumber('58685486858601586');
var bn2 = new BigNumber('8695758685');
console.log(bn1.plus(bn2).toString());
bn1 = new Decimal('58685486858601586');
bn2 = new Decimal('8695758685');
console.log(bn1.plus(bn2).toString());
bn1 = new Big('58685486858601586');
bn2 = new Big('8695758685');
console.log(bn1.plus(bn2).toString());
The console's output is :
58685495554360271
58685495554360271
58685495554360271

Calculate total after retriveing tax rate from JSON

I have 1 select, 2 text inputs & some JSON data in a form:
select input: List of Suppliers
text input 1: Net Amount
text input 2: Gross Amount
JSON Data:contains the rates of various suppliers as JSON in supplier_tax_rates
I am calculating Gross Amount something like this(pseudo code):
grossAmount = NetAmount + ((currently_selected_supplier.tax_percentage_charged / 100) * netAmount)
Here is the complete code:
Calculate total after retriveing tax rate from JSON
Now, this should work but it doesn't. I get NaN(not a number), means something is wrong. But I have trouble find where.
JSfiddle

You have multiple problems in your code. Here is the correct version:
var taxRates = $.parseJSON(supplier_tax_rates);
var getTaxRate = function(id) {
for (var i in taxRates) { // correct loop definition
if (taxRates[i].id == id) { // check you get id correctly
return taxRates[i].tax_percentage_charged; // instead of 'rate'
}
}
};
$('#PurchaseNetAmount').on('change', function(event) {
var taxRatesId = $('#PurchaseSupplierId').val();
var netAmount = parseFloat(this.value);
var grossAmount = netAmount + ((getTaxRate(taxRatesId) / 100) * netAmount);
$('#PurchaseGrossAmount').val(grossAmount);
});
DEMO: http://jsfiddle.net/A9vmg/18/

Your problem is in the look up function.
for(TaxRate in supplier_tax_rates ){
supplier_tax_rates is a string, not a JSON object
Than after you fix that you will have another error
return rate;
What is rate?
Learn to use console.log() or breakpoints so you can step throught your code and debug it.

getTaxRate(taxRatesId) return undefined

summing numbers stored in an array in JavaScript

I want to sum a list of numbers stored in a JavaScript object. The object is created and updated using this code:
var myscore = $('input[name="Points1"]').val();
scorelist = JSON.parse(localStorage.getItem(playerName + 'scorelist') || '[]');
scorelist.push(myscore);
localStorage.setItem(playerName + 'scorelist', JSON.stringify(scorelist));
$('div.scorecolumn', column).html("Score: <br>" + scorelist.join('<br>') + "<br>");
Basically I take whatever is in the column at the time, parse it, add myscore, stringify it, join each element with a <br> and write the list to the scorecolumn. The list of numbers is saved as an object. My goal is to sum up all the numbers in the object at any given time.
This script is inside of a function that passes in a bunch of parameters which is why some variables look undefined here.
Any help would be greatly appreciated! Thanks
UPDATE:
var nicTotalScore = nicScoreList.reduce(function(score, total) {
return total + score;
}, 0);
console.log(nicTotalScore); //12120
console.log(nicScoreList); //["12", "12"]
UPDATE:
If the score field is left blank when submitted, an empty string " " instead of a score. this is registering as a 0 when the reduce method goes through the array. This doesnt affect the total, but say, for example, i wanted to then find the average score, it throws it off. any ideas there? thanks

If you push() to scorelist, I'd be tempted to say it's likely an Array.
You could use reduce().
var total = scorelist.reduce(function(total, score) {
return total + +score;
}, 0);