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Prevent default options from being mutated #16

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Prevent default options from being mutated #16

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6 changes: 3 additions & 3 deletions src/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@ import path from 'path';
import fs from 'fs';
import { createCanvas } from 'canvas';

const defaultOptions = {
const defaultOptions = Object.freeze({
cellWidth: 100,
cellHeight: 40,
offsetLeft: 8,
Expand All @@ -13,10 +13,10 @@ const defaultOptions = {
paddingVertical: 0,
paddingHorizontal: 0,
backgroundColor: '#ffffff',
};
});

const TableRenderer = (options = {}) => {
const { cellWidth, cellHeight, offsetLeft, offsetTop, spacing, titleSpacing, fontFamily, paddingHorizontal, paddingVertical, backgroundColor } = Object.assign(defaultOptions, options);
const { cellWidth, cellHeight, offsetLeft, offsetTop, spacing, titleSpacing, fontFamily, paddingHorizontal, paddingVertical, backgroundColor } = {...defaultOptions, ...options};

const getTableWidth = (columns) => {
return columns?.reduce((sum, col) => sum + (col === '|' ? 1 : col.width ?? cellWidth), 0) ?? cellWidth;
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