setAttribute方法

void setAttribute(
  1. String name,
  2. Object value
)

实现

@pragma('dart2js:tryInline')
void setAttribute(String name, Object value) {
  // TODO(41258): Delete these assertions after forcing strong mode.
  // Protect [name] against string conversion to "null" or "undefined".
  assert(name != null, 'Attribute name cannot be null');
  // TODO(sra): assert(value != null, 'Attribute value cannot be null.');
  _setAttribute(name, value);
}