jeena/en.javascript.info
1
0
Fork 0
Code Issues Pull requests Projects Packages Wiki Activity Actions

closes #1547

Browse source
This commit is contained in:
Ilya Kantor 2019-10-29 23:35:35 +03:00
parent 7510263654
commit c5c94bce3b
1 changed files with 4 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

8
1-js/06-advanced-functions/03-closure/article.md
View file

@ -565,7 +565,8 @@ function f() {
*/!* */!*
} }
let g = f(); // g is reachable, and keeps the outer lexical environment in memory let func = f(); // func gets a reference to g
// so it stays and memory and its outer lexical environment stays as well
``` ```
Please note that if `f()` is called many times, and resulting functions are saved, then all corresponding Lexical Environment objects will also be retained in memory. All 3 of them in the code below: Please note that if `f()` is called many times, and resulting functions are saved, then all corresponding Lexical Environment objects will also be retained in memory. All 3 of them in the code below:
@ -595,10 +596,9 @@ function f() {
return g; return g;
} }
let g = f(); // while g is alive let func = f(); // while func has a reference to g, it stays in memory
// their corresponding Lexical Environment lives
g = null; // ...and now the memory is cleaned up func = null; // ...and now the memory is cleaned up
``` ```
### Real-life optimizations ### Real-life optimizations