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25 lines
810 B
25 lines
810 B
=proto
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int duk_get_prop_index(duk_context *ctx, int obj_index, unsigned int arr_index);
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=stack
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[ ... obj! ... ] -> [ ... obj! ... val! ] (if key exists)
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[ ... obj! ... ] -> [ ... obj! ... undefined! ] (if key doesn't exist)
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=summary
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<p>Like <code><a href="#duk_get_prop">duk_get_prop()</a></code>,
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but the property name is given as an unsigned integer
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<code>arr_index</code>. This is especially useful for accessing
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array elements (but is not limited to that).</p>
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<p>Conceptually the number is coerced to a string for the property
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read, e.g. <code>123</code> would be equivalent to a property name
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<code>"123"</code>. Duktape avoids an explicit coercion whenever
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possible.</p>
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=example
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duk_get_prop_index(ctx, -3, 123);
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printf("obj[123] = %s\n", duk_to_string(ctx, -1));
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duk_pop(ctx);
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=tags
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property
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