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45 lines
1.3 KiB
45 lines
1.3 KiB
=proto
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void duk_call_method(duk_context *ctx, int nargs);
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=stack
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[ ... func! this! arg! ...! argN! ] -> [ ... retval! ]
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=summary
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<p>Call target function <tt>func</tt> with an explicit <tt>this</tt>
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binding and <tt>nargs</tt> arguments (not counting the function and
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the <tt>this</tt> binding value). The function object, the <tt>this</tt>
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binding value, and the function arguments are replaced by a single
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return value. An error thrown during the function call is not
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automatically caught.</p>
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<p>If the target function is not strict, the binding value seen by the
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target function may be modified by processing specified in
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<a href="http://www.ecma-international.org/ecma-262/5.1/#sec-10.4.3">Entering Function Code</a>.
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</p>
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<p>This API call is equivalent to:</p>
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<pre class="ecmascript-code">
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var retval = func.call(this_binding, arg1, ..., argN);
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</pre>
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=example
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/* The target function here prints:
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*
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* this: 123
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* 2 3
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*
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* and returns 5.
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*/
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duk_push_string(ctx, "function(x,y) { print('this:', this); "
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"print(x,y); return x+y; }");
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duk_eval(ctx); /* -> [ ... func ] */
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duk_push_int(ctx, 123);
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duk_push_int(ctx, 2);
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duk_push_int(ctx, 3);
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duk_call_method(ctx, 2); /* [ ... func 123 2 3 ] -> [ 5 ] */
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printf("2+3=%d\n", duk_get_int(ctx, -1)); /* prints 5 */
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duk_pop(ctx);
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=tags
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call
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