bin()

Converts a number to a binary string or parses a binary string to a number.

bin(value)

• If `value` is a number, returns a binary string representation.
• If `value` is a valid binary string, returns the corresponding number.
• Returns an error if the string contains invalid characters.

Convert number to binary

bin(5);     // returns "101"

bin(16);    // returns "10000"

Convert binary string to number

bin("101");   // returns 5

bin("10000"); // returns 16

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