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name: duk_concat
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proto: |
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void duk_concat(duk_context *ctx, duk_idx_t count);
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stack: |
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[ ... val1! ...! valN! ] -> [ ... result! ]
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summary: |
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<p>Concatenate zero or more values into a result string. The input values
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are automatically coerced with
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<a href="http://www.ecma-international.org/ecma-262/5.1/#sec-9.8">ToString()</a>.</p>
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<p>This primitive minimizes the number of intermediate string interning
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operations and is better than concatenating strings manually.</p>
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example: |
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duk_push_string(ctx, "foo");
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duk_push_int(ctx, 123);
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duk_push_true(ctx);
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duk_concat(ctx, 3);
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printf("result: %s\n", duk_get_string(ctx, -1)); /* "foo123true" */
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duk_pop(ctx);
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tags:
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- string
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seealso:
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- duk_join
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introduced: 1.0.0
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