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Diffstat (limited to 'docs/frequently-asked-questions.rst')
| -rw-r--r-- | docs/frequently-asked-questions.rst | 14 |
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diff --git a/docs/frequently-asked-questions.rst b/docs/frequently-asked-questions.rst index e0bdcfb4..6d47e4a7 100644 --- a/docs/frequently-asked-questions.rst +++ b/docs/frequently-asked-questions.rst @@ -97,20 +97,6 @@ Its type is the type of the contract. Since any contract type basically inherits ``address`` type, ``this`` is always convertible to ``address`` and in this case contains its own address. -What is the difference between a function marked ``constant`` and one that is not? -================================================================================== - -``constant`` functions can perform some action and return a value, but cannot -change state (this is not yet enforced by the compiler). In other words, a -constant function cannot save or update any variables within the contract or wider -blockchain. These functions are called using ``c.someFunction(...)`` from -geth or any other web3.js environment. - -"non-constant" functions (those lacking the ``constant`` specifier) must be called -with ``c.someMethod.sendTransaction({from:eth.accounts[x], gas: 1000000});`` -That is, because they can change state, they have to have a gas -payment sent along to get the work done. - Get a contract to return its funds to you (not using ``selfdestruct(...)``). ============================================================================ |