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

increase perf && smaller size #23

Closed
wants to merge 4 commits into from
Closed

increase perf && smaller size #23

Changes from 3 commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
ceeac18
early return for strings and numbers
XaveScor Aug 3, 2020
2475c44
rename variable for increase concat pattern
XaveScor Aug 3, 2020
064a2e5
fix codestyle
XaveScor Aug 3, 2020
35deeaa
chore: added tests for number case
XaveScor Aug 4, 2020
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
14 changes: 8 additions & 6 deletions src/index.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2,14 +2,16 @@ function toVal(mix) {
var k, y, str='';

if (typeof mix === 'string' || typeof mix === 'number') {
str += mix;
} else if (typeof mix === 'object') {
return mix;
Copy link
Owner

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

This is a regression. Number type is returned.

Copy link
Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Added tests for this case. I found this is not regression :-) Because https://github.com/lukeed/clsx/blob/master/src/index.js#L35 converts toVal return value to string.

}

if (typeof mix === 'object') {
if (Array.isArray(mix)) {
for (k=0; k < mix.length; k++) {
if (mix[k]) {
if (y = toVal(mix[k])) {
for (y=0; y < mix.length; y++) {
Copy link
Owner

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Why did these vars get swapped?

Copy link
Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Codebase contains

str && (str += ' ');
str += k;

thrice. I try to create more identical pieces of code for better work for the "deflate" algorithm. This trick saves 2 bytes of gzip size. I don't rename the third piece(https://github.com/lukeed/clsx/blob/master/src/index.js#L34) because the total size not changed.

if (mix[y]) {
if (k = toVal(mix[y])) {
str && (str += ' ');
str += y;
str += k;
}
}
}
Expand Down