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LibJS: Add Math.pow()

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This commit is contained in:
Linus Groh 2020-04-23 12:36:08 +01:00 • committed by Andreas Kling
parent 687096cadd
commit 97366f4dd4
3 changed files with 36 additions and 0 deletions
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6
Libraries/LibJS/Runtime/MathObject.cpp
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@ -48,6 +48,7 @@ MathObject::MathObject()
put_native_function("sin", sin, 1);
put_native_function("cos", cos, 1);
put_native_function("tan", tan, 1);
put_native_function("pow", pow, 2);
put("E", Value(M_E));
put("LN2", Value(M_LN2));
@ -180,4 +181,9 @@ Value MathObject::tan(Interpreter& interpreter)
return Value(::tan(number.as_double()));
}
Value MathObject::pow(Interpreter& interpreter)
{
return exp(interpreter, interpreter.argument(0), interpreter.argument(1));
}
}

1
Libraries/LibJS/Runtime/MathObject.h
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@ -50,6 +50,7 @@ private:
static Value sin(Interpreter&);
static Value cos(Interpreter&);
static Value tan(Interpreter&);
static Value pow(Interpreter&);
};
}

29
Libraries/LibJS/Tests/Math.pow.js Normal file
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@ -0,0 +1,29 @@
load("test-common.js");
try {
assert(Math.pow(2, 0) === 1);
assert(Math.pow(2, 1) === 2);
assert(Math.pow(2, 2) === 4);
assert(Math.pow(2, 3) === 8);
assert(Math.pow(2, -3) === 0.125);
assert(Math.pow(3, 2) === 9);
assert(Math.pow(0, 0) === 1);
assert(Math.pow(2, Math.pow(3, 2)) === 512);
assert(Math.pow(Math.pow(2, 3), 2) === 64);
assert(Math.pow("2", "3") === 8);
assert(Math.pow("", []) === 1);
assert(Math.pow([], null) === 1);
assert(Math.pow(null, null) === 1);
assert(Math.pow(undefined, null) === 1);
assert(isNaN(Math.pow(NaN, 2)));
assert(isNaN(Math.pow(2, NaN)));
assert(isNaN(Math.pow(undefined, 2)));
assert(isNaN(Math.pow(2, undefined)));
assert(isNaN(Math.pow(null, undefined)));
assert(isNaN(Math.pow(2, "foo")));
assert(isNaN(Math.pow("foo", 2)));
console.log("PASS");
} catch (e) {
console.log("FAIL: " + e);
}