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24 lines
504 B
24 lines
504 B
name: duk_dup
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proto: |
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void duk_dup(duk_context *ctx, duk_idx_t from_idx);
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stack: |
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[ ... val! ... ] -> [ ... val! ... val! ]
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summary: |
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<p>Push a duplicate of value at <code>from_idx</code> to the stack.
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If <code>from_idx</code> is invalid, throws an error.</p>
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example: |
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duk_push_int(ctx, 123); /* -> [ ... 123 ] */
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duk_push_int(ctx, 234); /* -> [ ... 123 234 ] */
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duk_dup(ctx, -2); /* -> [ ... 123 234 123 ] */
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tags:
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- stack
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seealso:
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- duk_dup_top
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introduced: 1.0.0
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