name: duk_get_boolean proto: | duk_bool_t duk_get_boolean(duk_context *ctx, duk_idx_t index); stack: | [ ... val! ... ] summary: |

Get the boolean value at index without modifying or coercing the value. Returns 1 if the value is true, 0 if the value is false, not a boolean, or the index is invalid.

Note that the value is not coerced, so even a "truthy" Ecmascript value (like a non-empty string) will be treated as false. If you want to coerce the value, use duk_to_boolean().

example: | if (duk_get_boolean(ctx, -3)) { printf("value is true\n"); } tags: - stack introduced: 1.0.0