From while to for: Difference between revisions
(→stack) |
No edit summary |
||
| Line 44: | Line 44: | ||
A [[wikipedia:Stack (abstract_data_type)|stack]] is an often used idea/data structure. It's based on a system used in cafeterias where food trays could be "pushed on", and "popped off" a spring loaded system for use. | A [[wikipedia:Stack (abstract_data_type)|stack]] is an often used idea/data structure. It's based on a system used in cafeterias where food trays could be "pushed on", and "popped off" a spring loaded system for use. | ||
[[File:426893 2967152131801 1051608913 2875355 1878017031 n.jpg]] | |||
http://s.ecrater.com/stores/242163/4f24ed6ed9ebd_242163n.jpg | http://s.ecrater.com/stores/242163/4f24ed6ed9ebd_242163n.jpg | ||
Revision as of 10:33, 1 October 2012
<slidy theme="aa" />
Importance / Use of Scope
from while...
c=0;
while (c<10) {
ctx.fillRect(0, c*10, 10, 10);
c++;
}
... to for
for (c=0; c<10; c++) {
ctx.fillRect(0, c*10, 10, 10);
}
from while to for
c=0;
while (c<10) {
ctx.fillRect(0, c*10, 10, 10);
c++;
}
for (c=0; c<10; c++) {
ctx.fillRect(0, c*10, 10, 10);
}
translate, rotate
https://developer.mozilla.org/en-US/docs/Canvas_tutorial/Transformations
stack
A stack is an often used idea/data structure. It's based on a system used in cafeterias where food trays could be "pushed on", and "popped off" a spring loaded system for use.
