Base-16 literal
0x1
- Base 16
- 1 bits
- = 1
0x1 is a hexadecimal literal equal to 1 in decimal. It needs 1 bits (1 bytes) of storage, and is 0x1 in hexadecimal and 1 in binary.
In every base
Bit width & storage
Significant bits1
Bytes needed1
Fits in 8 bitsYes
Fits in 16 bitsYes
Fits in 32 bitsYes
Fits in 64 bitsYes
Padded to 8 bits00000001
Padded to 32 bits00000000000000000000000000000001
Read another way
Bitwise operations
NOT (32-bit)4,294,967,294
Shift left by 12
Shift right by 10
Population count1the number of set bits
Lowest set bit1
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Also reads as
U+0001 (unicode character)
- U+0001
- Control
U+0001 is code point 1 (), a control in the Basic Latin (ASCII) block of the Basic Multilingual Plane. It takes 1 byte in UTF-8 and 1 unit in UTF-16.
Identity
Code pointU+0001
Decimal1
Character
General categoryControl
BlockBasic Latin (ASCII)
PlaneBasic Multilingual Planeplane 0
Official nameNot includedthe Unicode Character Database is not bundled; a stale copy would be worse than none
Encodings
UTF-8011 byte
UTF-160001a single unit
UTF-3200000001
Binary1
Bytes in UTF-8 vs UTF-161 vs 2UTF-16 is not always smaller, even for non-Latin text
Writing it in code
HTML numeric entity
HTML hex entity
CSS escape\0001
JavaScript\u0001
Python\u0001
Percent-encoded (URL)%01
Things that catch people out
JavaScript string length1
Needs a surrogate pairNo
Safe in a URL unescapedNo
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