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String

实例属性

  • length

实例方法

  1. at
  2. includes、indexOf、search
  3. split
  4. repeat
  5. replace、replaceAll
  6. trim、trimStart、trimEnd
  7. padStart、padEnd
  8. startsWith、endsWith
  9. toLowerCase、toUpperCase

案例

at

Coded by Yang_Lee