1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 20:37:35 +00:00

LibJS: Add String.prototype.concat

This commit is contained in:
Kesse Jones 2020-04-16 11:35:13 -03:00 committed by Andreas Kling
parent e72a537033
commit 7725b1970e
3 changed files with 42 additions and 0 deletions

View file

@ -55,6 +55,7 @@ StringPrototype::StringPrototype()
put_native_function("trim", trim, 0);
put_native_function("trimStart", trim_start, 0);
put_native_function("trimEnd", trim_end, 0);
put_native_function("concat", concat, 1);
}
StringPrototype::~StringPrototype()
@ -307,4 +308,22 @@ Value StringPrototype::trim_end(Interpreter& interpreter)
return trim_string(interpreter, *this_object, TrimMode::Right);
}
Value StringPrototype::concat(Interpreter& interpreter)
{
auto* this_object = interpreter.this_value().to_object(interpreter.heap());
if (!this_object)
return {};
auto& string = this_object->to_string().as_string()->string();
StringBuilder builder;
builder.append(string);
for (size_t i = 0; i < interpreter.argument_count(); ++i) {
auto string_argument = interpreter.argument(i).to_string();
builder.append(string_argument);
}
return js_string(interpreter, builder.to_string());
}
}

View file

@ -53,6 +53,7 @@ private:
static Value trim(Interpreter&);
static Value trim_start(Interpreter&);
static Value trim_end(Interpreter&);
static Value concat(Interpreter&);
};
}