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


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

- 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.
Tech Notes
Related Guides
History
Introduced in 1996 (3.0)
Text
Wolfram Research (1996), DelimiterFlashTime, Wolfram Language function, https://reference.wolfram.com/language/ref/DelimiterFlashTime.html.
CMS
Wolfram Language. 1996. "DelimiterFlashTime." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/DelimiterFlashTime.html.
APA
Wolfram Language. (1996). DelimiterFlashTime. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/DelimiterFlashTime.html
BibTeX
@misc{reference.wolfram_2025_delimiterflashtime, author="Wolfram Research", title="{DelimiterFlashTime}", year="1996", howpublished="\url{https://reference.wolfram.com/language/ref/DelimiterFlashTime.html}", note=[Accessed: 13-August-2025]}
BibLaTeX
@online{reference.wolfram_2025_delimiterflashtime, organization={Wolfram Research}, title={DelimiterFlashTime}, year={1996}, url={https://reference.wolfram.com/language/ref/DelimiterFlashTime.html}, note=[Accessed: 13-August-2025]}