Wolfram Language & System 10.0 (2014)|Legacy Documentation

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is an option for cells and notebooks that specifies how long in seconds a delimiter should flash when its matching delimiter is entered.


  • DelimiterFlashTime->0 makes delimiters not flash.
  • A typical default setting is DelimiterFlashTime->0.3, which makes matching delimiters flash for 0.3 seconds.
  • Delimiters include parentheses, brackets and braces, and , and , and paired special characters such as and .
  • If you enter an unpaired closing delimiter, the standard Wolfram System front end will beep.
  • You can use the front end menu item Check Balance to select ranges with balanced delimiters in an expression.
  • You can set DelimiterFlashTime at the level of a single cell, a notebook, or the whole front end.

ExamplesExamplesopen allclose all

Basic Examples  (1)Basic Examples  (1)

Create a cell in which matching delimiters are highlighted for two seconds:

Click for copyable input
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Introduced in 1996