info/learnxinyminutes-docs
1
0
Fork 0
mirror of https://github.com/adambard/learnxinyminutes-docs.git synced 2025-08-06 23:06:49 +02:00
Code Issues Releases Wiki Activity

Formatting

Browse Source
This commit is contained in:
Nemil Dalal
2015-11-30 15:48:47 -05:00
parent 700f3e7a1c
commit ec6172fc5e
1 changed files with 13 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
solidity.html.markdown
View File

@@ -81,12 +81,12 @@ contract AcmeBank {
// Now let's go through the basics of Solidity // Now let's go through the basics of Solidity
// 1. DATA TYPES AND ASSOCIATED METHOD
// 1. DATA TYPES AND ASSOCIATED METHODS
// uint is the data type typically used for currency (there are no doubles // uint is the data type typically used for currency (there are no doubles
// or floats) and for dates // or floats) and for dates
uint x; uint x;
// with 'constant', the compiler replaces each occurence with the acutal value // with 'constant', the compiler replaces each occurence with the acutal value
// int of 256 bits, cannot be changed after instantiation // int of 256 bits, cannot be changed after instantiation
int constant a = 8; int constant a = 8;
@@ -133,6 +133,7 @@ var a = true;
uint x = 5; uint x = 5;
delete(x); // x is now 0 delete(x); // x is now 0
// 2. DATA STRUCTURES // 2. DATA STRUCTURES
// Arrays // Arrays
bytes32[5] nicknames; // static array bytes32[5] nicknames; // static array
@@ -181,6 +182,7 @@ state = State.Created;
// 'memory' does not persist, 'storage' does // 'memory' does not persist, 'storage' does
// Default is 'storage' for local and state variables; 'memory' for function parameters // Default is 'storage' for local and state variables; 'memory' for function parameters
// 3. Variables of note // 3. Variables of note
// ** this ** // ** this **
this; // the address of the current contract this; // the address of the current contract
@@ -209,6 +211,7 @@ block.gasLimit();
// ** storage - A persistent storage hash (does not need to be declared) ** // ** storage - A persistent storage hash (does not need to be declared) **
storage['abc'] = 'def'; // maps 256 bit words to 256 bit words storage['abc'] = 'def'; // maps 256 bit words to 256 bit words
// 4. FUNCTIONS AND MORE // 4. FUNCTIONS AND MORE
// A. Functions // A. Functions
// Simple function // Simple function
@@ -290,6 +293,7 @@ function changeOwner(newOwner)
owner = newOwner; owner = newOwner;
} }
// 5. BRANCHING AND LOOPS // 5. BRANCHING AND LOOPS
// All basic logic blocks work - including if/else, for, while, break, continue, return // All basic logic blocks work - including if/else, for, while, break, continue, return
@@ -298,6 +302,7 @@ function changeOwner(newOwner)
// Syntax is the same as javascript, but there is no type conversion from // Syntax is the same as javascript, but there is no type conversion from
// non-boolean to boolean, so comparison operators must be used to get the boolean value // non-boolean to boolean, so comparison operators must be used to get the boolean value
// 6. OBJECTS/CONTRACTS // 6. OBJECTS/CONTRACTS
// A. Calling an external contract // A. Calling an external contract
@@ -350,6 +355,7 @@ import "github.com/ethereum/dapp-bin/library/iterable_mapping.sol";
// Importing is under active development and will change // Importing is under active development and will change
// Importing cannot currently be done at the command line // Importing cannot currently be done at the command line
// 7. CONTRACT DESIGN PATTERNS // 7. CONTRACT DESIGN PATTERNS
// A. Obfuscation // A. Obfuscation
@@ -383,6 +389,8 @@ function remove() {
// compilation may better handle this, but for now there are benefits to // compilation may better handle this, but for now there are benefits to
// planning your data structures) // planning your data structures)
// *** EXAMPLE: Let's do a more complex example *** // *** EXAMPLE: Let's do a more complex example ***
// ** START EXAMPLE ** // ** START EXAMPLE **
@@ -400,7 +408,7 @@ function remove() {
// ] // ]
// *** END EXAMPLE *** // *** END EXAMPLE ***
// Some final points
// 7. NATIVE FUNCTIONS // 7. NATIVE FUNCTIONS
// Currency units // Currency units
@@ -427,6 +435,7 @@ sha3("ab", "cd");
ripemd160("abc"); ripemd160("abc");
sha256("def"); sha256("def");
// 8. COMMON MISTAKES/MISCONCEPTIONS // 8. COMMON MISTAKES/MISCONCEPTIONS
// A few common mistakes and misconceptions: // A few common mistakes and misconceptions:
@@ -441,6 +450,7 @@ sha256("def");
// TODO // TODO
// 9. STYLE NOTES // 9. STYLE NOTES
// Use 4 spaces for indentation // Use 4 spaces for indentation
// (Python's PEP8 is used as the baseline style guide, including its general philosophy) // (Python's PEP8 is used as the baseline style guide, including its general philosophy)