spy.printf

spy.printf("format string", [arg1, arg2, ...]);

Returns the passed format string with the following replacements performed:

<dl> <dt><code>%n</code></dt> <dd>the name of the spy ("spy" by default)</dd> <dt><code>%c</code></dt> <dd>the number of times the spy was called, in words ("once", "twice", etc.)</dd> <dt><code>%C</code></dt> <dd>a list of string representations of the calls to the spy, with each call prefixed by a newline and four spaces</dd> <dt><code>%t</code></dt> <dd>a comma-delimited list of <code>this</code> values the spy was called on</dd> <dt><code>%<var>n</var></code></dt> <dd>the formatted value of the <var>n</var>th argument passed to <code>printf</code></dd> <dt><code>%*</code></dt> <dd>a comma-delimited list of the (non-format string) arguments passed to <code>printf</code></dd> <dt><code>%D</code></dt> <dd>a multi-line list of the arguments received by all calls to the spy</dd> </dl>

<<< ../../../.vitepress/tests/docs/spies/api/printf.test.js