Nested Array in JavaScript

Question

I have an array soter and a counter array. I want to get the the number of name which the count array will provide me. Is it correct ? I am a bit confused about the output. Can someone enligten me on this nested array loop in JavaScript ?

var soter = ['bp','mf','cc'],

count = [0,0,0]; 

for(var y = 0 ; y < soter.length; y++) {            
   for(var i = 0 ;i < data.SO_Ter.length; i++) {
     if(data.SO_Ter[i].name == soter[y]) {
        count[y]++;

Can you give additional information on what the data.SO_Ter is? — Humble Hedgehog
– Humble Hedgehog, Commented Mar 25, 2016 at 19:06
data is an object. SO_Ter is the child object. name is the property of the child object — Baadshah
– Baadshah, Commented Mar 25, 2016 at 19:07
Seems fine to me, you will get in count an int with the number of times the string in 'soter' appears in data. Make sure the lenghts of soter and count are the same. What does your result looks like? — AAlferez
– AAlferez, Commented Mar 25, 2016 at 19:08

AAlferez · Accepted Answer · 2016-03-25 19:23:46Z

1

That code seems correct to me, supposing the well formed object data and child SO_Ter .

So you go through the outer loop, positions 0 to 2, and for each one of them you will check that each of the items in data.SO_Ter is equal to the soter value. If you find that value, you increment the count in 1.

Does it make sense?

To make it easier, it would be like:

for(var i = 0 ;i < data.SO_Ter.length; i++) {
     if(data.SO_Ter[i].name == soter[0]) {
        count[0]++;
for(var i = 0 ;i < data.SO_Ter.length; i++) {
     if(data.SO_Ter[i].name == soter[1]) {
        count[1]++;
for(var i = 0 ;i < data.SO_Ter.length; i++) {
     if(data.SO_Ter[i].name == soter[2]) {
        count[2]++;

So since you do it 3 times, you just replace those with an outer for loop.

UPDATE

count[0] represents how many times the word 'bp' has been found

count[1] represents how many times the word 'mf' has been found

count[2] represents how many times the word 'cc' has been found

edited Mar 25, 2016 at 19:23

answered Mar 25, 2016 at 19:11

AAlferez

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7 Comments

Baadshah Over a year ago

What does the count[0], count[1], count[2] represent ?

AAlferez Over a year ago

You are accessing the count array you created in your code, positions 0, 1, 2, which gets the value of that position.

AAlferez Over a year ago

count array and soter array both have the same lenght because count[0] represents the count of the times the word on soter[0] appears, same for count[1] and soter[1] and so on.

Baadshah Over a year ago

So the count[2]++ sets the number of ccfound in data.SO_Ter[i].name ? Right ?

AAlferez Over a year ago

count[2]++ will increase the count on position 2, which means that another 'cc' has been found when compared to data.SO_Ter[i], correct

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