Function renderChunk

src/index.js:648–662

(code, chunk, opts)

						// Only ESM environments necessitate globalThis, and UMD bundles can't be properly loaded as ESM.
						// So we remove the globalThis check, replacing it with `this||self` to match Rollup 1's output:
						renderChunk(code, chunk, opts) {
							if (opts.format === 'umd') {
								// minified:
								code = code.replace(
									/([a-zA-Z$_]+)="undefined"!=typeof globalThis\?globalThis:(\1\|\|self)/,
									'$2',
								);
								// unminified:
								code = code.replace(
									/(global *= *)typeof +globalThis *!== *['"]undefined['"] *\? *globalThis *: *(global *\|\| *self)/,
									'$1$2',
								);
								return { code, map: null };
							}
						},
						// Grab size info before writing files to disk:
						writeBundle(_, bundle) {
							config._sizeInfo = Promise.all(