adambard/learnxinyminutes-docs
1
1
Fork 0
mirror of https://github.com/adambard/learnxinyminutes-docs.git synced 2024-11-22 21:52:31 +03:00
Code Issues Projects Releases Wiki Activity

fix immediately-executing function

Browse Source
This commit is contained in:
greybird 2013-08-05 17:22:53 +04:00
parent 293c65c286
commit f5023cc9b3
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
javascript.html.markdown
View File

@ -241,7 +241,7 @@ i // = 5 - not undefined as you'd expect in a block-scoped language
// This has led to a common pattern of "immediately-executing anonymous
// functions", which prevent temporary variables from leaking into the global
// scope.
function(){
(function(){
var temporary = 5
// We can access the global scope by assiging to the 'global object', which
// in a web browser is always 'window'. The global object may have a
@ -249,7 +249,7 @@ function(){
window.permanent = 10
// Or, as previously mentioned, we can just leave the var keyword off.
permanent2 = 15
}()
})()
temporary // raises ReferenceError
permanent // = 10
permanent2 // = 15