iskm/learnxinyminutes-docs
1
0
Fork 0
mirror of https://github.com/adambard/learnxinyminutes-docs.git synced 2024-12-23 17:41:41 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

[vyper/en] Update vyper.html.markdown

Browse Source 
Multidimensional array syntax was wrong, now fixed
This commit is contained in:
Kenny P 2019-04-23 19:27:49 -04:00 committed by GitHub
parent 2dde374091
commit 6e0ce5f976
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
vyper.html.markdown
View File

@ -386,11 +386,16 @@ uint newLength = names.push("John"); # adding returns new length of the array
names.length; # get length
names.length = 1; # lengths can be set (for dynamic arrays in storage only)
# multidimensional fixed array
ls: (uint256[10])[3] # note the parentheses
# Multidimensional Arrays
# At initialization, array dimensions must be hard-coded or constants
# Initialize a 10-column by 3-row, multidimensional fixed array
ls: (uint256[10])[3] # parentheses are optional
@public
def setToThree():
self.ls[5][3] = 3 # multidimensional array access
# Multidimensional Array Access and Write
# access indices are reversed
# set element in row 2 (3rd row) column 5 (6th column) to 3
self.ls[2][5] = 3
# Dictionaries (any simple type to any other type including structs)
theMap: map(uint256, bytes32)