Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Update 1.2.4.md #38

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Update 1.2.4.md #38

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
2 changes: 1 addition & 1 deletion 1/1.2.4.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -545,7 +545,7 @@ Function.prototype.myBind = function(objThis, ...params) {
//对返回的函数 secondParams 二次传参
let funcForBind = function(...secondParams) {
//检查this是否是funcForBind的实例？也就是检查funcForBind是否通过new调用
const isNew = this instanceof funcForBind;
const isNew = this instanceof thisFn;//注意：此处funcForBind的原型指向thisFn.prototype

//new调用就绑定到this上,否则就绑定到传入的objThis上
const thisArg = isNew ? this : Object(objThis);
Expand Down