preact/compat/src/util.js

Fast 4kb React-compatible Virtual DOM library.

export const assign = Object.assign;

/**
 * Check if two objects have a different shape
 * @param {object} a
 * @param {object} b
 * @returns {boolean}
 */
export function shallowDiffers(a, b) {
	for (let i in a) if (i != '__source' && a[i] !== b[i]) return true;
	for (let i in b) if (i != '__source' && !(i in a)) return true;
	return false;
}

export const IS_NON_DIMENSIONAL =
	/^(-|f[lo].*[^se]$|g.{5,}[^ps]$|z|o[pr]|(W.{5})?[lL]i.*(t|mp)$|an|(bo|s).{4}Im|sca|m.{6}[ds]|ta|c.*[st]$|wido|ini)/;