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binary composite ​

Signature ​

ts
function binary(): Parser<number>

Description ​

binary parses a binary number prefixed with 0b or 0B, e.g. 0b10, 0B10. Returns a decimal number obtained using parseInt with radix of 2.

Usage ​

ts
const Parser = binary()

Success

ts
run(Parser).with('0b10')

{
  isOk: true,
  span: [ 0, 4 ],
  pos: 4,
  value: 2
}

Failure

ts
run(Parser).with('b10')

{
  isOk: false,
  span: [ 0, 0 ],
  pos: 0,
  expected: 'binary number'
}