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37 lines
755 B
37 lines
755 B
name: duk_throw
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proto: |
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duk_ret_t duk_throw(duk_context *ctx);
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stack: |
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[ ... val! ]
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summary: |
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<p>Throw the value on top of the stack. This call never returns.</p>
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<p>Even though the function never returns, the prototype describes a return
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value which allows code such as:</p>
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<pre class="c-code">
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if (argvalue < 0) {
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duk_push_error_object(ctx, DUK_ERR_TYPE_ERROR, "invalid argument: %d", (int) argvalue);
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return duk_throw(ctx);
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}
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</pre>
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example: |
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/* Throw a string value; equivalent to the Ecmascript code:
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*
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* throw "this string is thrown";
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*/
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duk_push_string(ctx, "this string is thrown");
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duk_throw(ctx);
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tags:
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- error
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seealso:
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- duk_error
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- duk_push_error_object
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introduced: 1.0.0
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