vega-util

import { isObject, merge, truthy, pad } from 'vega-util'; console.log('Is { a: 1 } an object?', isObject({ a: 1 })); console.log('Is "hello" an object?', isObject('hello')); const obj1 = { a: 1, b: { c: 2 } }; const obj2 = { b: { d: 3 }, e: 4 }; const merged = merge(obj1, obj2); console.log('Merged object:', merged); // Expected: { a: 1, b: { d: 3 }, e: 4 } const value = 42; console.log(`Is ${value} truthy?`, truthy(value)); console.log(`Is null truthy?`, truthy(null)); const str = 'Vega'; const paddedStr = pad(str, 10, ' ', 'left'); console.log(`Padded string: "${paddedStr}"`); // Example demonstrating a common utility pattern with conditional logic function processConfig(userConfig: object = {}) { const defaultConfig = { theme: 'light', animation: true, logLevel: 'info' }; if (!isObject(userConfig)) { error('Invalid configuration: must be an object.'); return defaultConfig; // Fallback to default } return merge(defaultConfig, userConfig); } const myConfig = processConfig({ animation: false, logLevel: 'debug' }); console.log('Processed configuration:', myConfig); const invalidConfig = processConfig('not an object'); console.log('Invalid config handling resulted in:', invalidConfig);