UNPKG

@ngneat/dirty-check-forms

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Detect Unsaved Changes in Angular Forms

github.com/ngneat/dirty-check-forms

ngneat/dirty-check-forms

39 lines • 5.27 kB
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export function equal(a, b) { if (a === b) return true; if (a && b && typeof a == 'object' && typeof b == 'object') { if (a.constructor !== b.constructor) return false; let length, i; if (Array.isArray(a)) { length = a.length; if (length != b.length) return false; for (i = length; i-- !== 0;) if (!equal(a[i], b[i])) return false; return true; } if (a.constructor === RegExp) return a.source === b.source && a.flags === b.flags; if (a.valueOf !== Object.prototype.valueOf) return a.valueOf() === b.valueOf(); if (a.toString !== Object.prototype.toString) return a.toString() === b.toString(); const keys = Object.keys(a); length = keys.length; if (length !== Object.keys(b).length) return false; for (i = length; i-- !== 0;) if (!Object.prototype.hasOwnProperty.call(b, keys[i])) return false; for (i = length; i-- !== 0;) { const key = keys[i]; if (!equal(a[key], b[key])) return false; } return true; } return a !== a && b !== b; } //# sourceMappingURL=data:application/json;base64,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