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24 lines
460 B
24 lines
460 B
name: duk_require_null
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proto: |
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void duk_require_null(duk_context *ctx, duk_idx_t index);
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stack: |
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[ ... val! ... ]
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summary: |
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<p>Throw an error if the value at <code>index</code> is not <code>null</code>
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or if the index is invalid.</p>
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<div class="note">
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There is no "get" primitive (<code>duk_get_null()</code>) because such a
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function would be a no-op.
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</div>
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example: |
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duk_require_null(ctx, -3);
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tags:
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- stack
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introduced: 1.0.0
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