What is the best way to retrieve the column that comes after a specific column?

I have a specific column and I want to extract the subsequent column in the dataset.


nhood,column,variablecolumn
Treasure Island,3,5
McLaren Park,1,2
Tenderloin,28,112
Lakeshore,14,8
Chinatown,15,103

Although I know the name of the second column, the name of the third column varies in my dataset.

I experimented with different approaches to achieve this. My goal is to retrieve the value "5" from the first row.


parseFloat(data[1]["column"+1]);
parseFloat(data[1]["column"]+1);

Another strategy involves creating an array with column names, identifying the index for "column", and then using index + 1 when extracting data using that command.

javascriptd3.js

Answer №1

Understood. As previously stated, transforming the column names into an array allows you to easily retrieve a specific element from that array. In this scenario, you have the option to utilize "col" as a placeholder for the variablecolumn name.

let valueArray = data.columns;
let colIndex = valueArray.indexOf(dataset) + 1;
let col = valueArray[colIndex];

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