apartBy method

(String?, String?) apartBy(
  1. String gap
)

通过gap字符串分割字符串, 从前到后分析

Implementation

(String?, String?) apartBy(String gap) {
  final int pos = this.indexOf(gap);
  if (pos == -1) {
    return (null, this);
  }
  final String first = this.substring(0, pos);
  final String last = this.substring(pos + gap.length);
  return (first, last);
}