Revision Difference
string.format#526829
<function name="format" parent="string" type="libraryfunc">
<description>Formats the specified values into the string given.</description>
<realm>Shared and Menu</realm>
<args>
<arg name="format" type="string">The string to be formatted.<br/>
Follows this format: http://www.cplusplus.com/reference/cstdio/printf/</arg>⤶
Follows this format: http://www.cplusplus.com/reference/cstdio/printf/⤶
⤶
⤶
| Format | Description | Example of the output |⤶
|:------:|:-----------:|:---------------------:|⤶
| %p | Returns pointer to supplied structure (table/function) | `0xf20a8968` |⤶
| %q | Formats a string between double quotes, using escape sequences when necessary to ensure that it can safely be read back by the Lua interpreter (last statement could be wrong) | `"test\1\2test"` |⤶
⤶
</arg>⤶
<arg name="formatParameters" type="vararg">Values to be formatted into the string.</arg>
</args>
<rets>
<ret name="" type="string">The formatted string</ret>
</rets>
</function>
<example>
<description>Example showing the different types of format codes.</description>
<code>
local s = "Hello, world!"
// string
print(string.format("here's a string: %s", s))
// string with quotes
print(string.format("here's a quoted string: %q", s))
// characters from numeric values
print(string.format("%c%c%c", 65, 66, 67))
// number with an exponent
print(string.format("%e, %E", math.pi, math.pi))
// float and compact float
print(string.format("%f, %G", math.pi, math.pi))
// signed, signed, and unsigned int
print(string.format("%d, %i, %u", -100, -100, -100))
// octal, hex, and uppercase hex
print(string.format("%o, %x, %X", -100, -100, -100))
</code>
<outputfixedwidth>Fixed width</outputfixedwidth>
<output>
here's a string: Hello, world!
here's a quoted string: "Hello, world!"
ABC
3.141593e+000, 3.141593E+000
3.141593, 3.14159
-100, -100, 4294967196
37777777634, ffffff9c, FFFFFF9C
</output>
</example>