If we want to automatically adjust the width of a column in an excel sheet based on the length of its values, there is a simple approach that can be taken. After some experimentation, I have come up with the following solution:
Firstly, we loop through each column in the worksheet:
worksheetName.columns.forEach(col => {});
//Note: col => {} is just a shorthand for function(col) {}
Next, we need to determine the value with the longest length in each column. This information is stored in the 'values' property. Since there may be multiple values per key in a column, we look for the value with the highest length (e.g., the longest name):
// Loop through all columns in the worksheet
worksheetName.columns.forEach(col => {
// Find the value with the longest length
const maxLength = col.values.reduce((maxWidth, value) => {
if (value && value.length > maxWidth) {
return value.length;
}
return maxWidth;
}, 0);
// Set the column width to accommodate the longest value
col.width = maxLength;
});
In cases where the header might be wider than the values in a column, we can update the code accordingly:
worksheetName.columns.forEach(col => {
// Access the header length
const headerLength = col.header.length;
// Determine the longest value in the column
const maxLength = col.values.reduce((maxWidth, value) => {
if (value && value.length > maxWidth) {
return value.length;
}
return maxWidth;
}, 0);
// Adjust column width based on the header and values
col.width = Math.max(headerLength, maxLength);
});
To add additional spacing to the cells, a number can be included in the calculation. The final code would look something like this:
worksheetName.columns.forEach(col => {
// Get the header length
const headerLength = col.header.length;
// Determine the longest value length in the column
const maxLength = col.values.reduce((maxWidth, value) => {
if (value && value.length > maxWidth) {
return value.length;
}
return maxWidth;
}, 0);
// Adjust column width with added padding
col.width = Math.max(headerLength, maxLength) + 2;
});