#format

Please check Python built-in functions for more related APIs.

Description: Format a value (calls the object's __format__ method).

def format(value, format_spec=''):
    '''
    Format a value using format_spec.

    :param value: A variable
    :param format_spec: Format specification
    :return: The formatted value
    '''

Example:

# Numeric formatting
print(format(3.14159, ".2f"))  # Output: '3.14'
print(format(1000000, ","))    # Output: '1,000,000'

# Alignment and padding
print(format("hello", "^10"))   # Output: '  hello   ' (center-aligned, width 10)
print(format(42, "05d"))        # Output: '00042' (zero-padded, width 5)

# Base conversion
print(format(10, "b"))          # Output: '1010' (binary)
print(format(255, "x"))         # Output: 'ff' (lowercase hexadecimal)

>>> Establishing WebAssembly Runtime.

>>> Standby.

#Format Specification

format_spec ::= [options][width][grouping]["." precision][type]
options     ::= [[fill]align][sign]["z"]["#"]["0"]
fill        ::= <any character>
align       ::= "<" | ">" | "=" | "^"
sign        ::= "+" | "-" | " "
width       ::= digit+
grouping    ::= "," | "_"
precision   ::= digit+
type        ::= "b" | "c" | "d" | "e" | "E" | "f" | "F" | "g"
                | "G" | "n" | "o" | "s" | "x" | "X" | "%"

See the Python Official Documentation for more details.

#Alignment Options

Option	Description
`<`	Left-align (default for text)
`>`	Right-align (default for numbers)
`=`	Padding after sign but before digits
`^`	Center-align

#Sign Options

Option	Description
`+`	Show sign for both positive and negative numbers
`-`	Show sign only for negative numbers (default)
`(space)`	Leading space for positive, `-` for negative

#Separator Options

Option	Description
`,`	Use comma as thousands separator
`_`	Use underscore as thousands separator

#Integer Type Options

Option	Description
`b`	Binary
`d`	Decimal
`o`	Octal
`x`	Hexadecimal (lowercase)
`X`	Hexadecimal (uppercase)
`n`	Like `d`, but uses locale-specific separators
`c`	Convert integer to corresponding Unicode character before printing

#Floating Point Type Options

Option	Description
`e`	Scientific notation (lowercase)
`E`	Scientific notation (uppercase)
`f`	Fixed-point notation (default 6 decimals)
`F`	Same as `f`, but uses uppercase
`g`	General format (lowercase)
`G`	General format (uppercase)
`n`	Like `g`, but uses locale-specific separators
`%`	Percentage (multiplies by 100 and adds `%`)