javascript - What does u001b[1Gu001b[2K> mean? - Stack Overflow

I'm running through some javascript code and during testing I received this sequence: \u001b[1G\u001b[2K> . The entire line was actual: tests\\repl\u001b[1G\u001b[2K> tests\\replTest.js, expected: tests\replTest.js

What does this mean?

I'm running through some javascript code and during testing I received this sequence: \u001b[1G\u001b[2K> . The entire line was actual: tests\\repl\u001b[1G\u001b[2K> tests\\replTest.js, expected: tests\replTest.js

What does this mean?

• javascript

Share Improve this question Follow edited Apr 4, 2020 at 22:36 franklinsijo 18.3k44 gold badges5050 silver badges6666 bronze badges asked Jul 31, 2018 at 12:57 AlexAlex 17111 gold badge33 silver badges1515 bronze badges 2

• Those look a lot like ANSI escape codes (in addition to Pointy's ment below, which I took for granted was obvious). – msanford Commented Jul 31, 2018 at 13:01
• \uXXXX is a hex literal. Look up 001B in a Unicode chart. – Pointy Commented Jul 31, 2018 at 13:01

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Sorted by: Reset to default 10

Those are unparsed ANSI control codes.

• \u001b[1G is a "Cursor Horizontal Absolute" code. The 1 means it tries to move the cursor to the first character of the line.
• \u001b[2K is a "Erase in Line" code. The 2 makes it mean "Erase the entire line".

It looks like a Unicode escaped dump of the input to a console where someone started typing tests\repl, then erased the whole line and instead wrote > tests\replTest.js. Could also be the redirect of the console to a file.