Errata for Effective TypeScript
Submit your own errata for this product.
The errata list is a list of errors and their corrections that were found after the product was released. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Date Corrected".
The following errata were submitted by our customers and approved as valid errors by the author or editor.
Color Key: Serious Technical Mistake Minor Technical Mistake Language or formatting error Typo Question Note Update
| Version |
Location |
Description |
Submitted By |
Date Submitted |
Date Corrected |
| Printed |
Page 68
First code example |
Last line of the code example is:
{ '1,2,3': 1 }
The value should be 2, not 1:
{ '1,2,3': 2 }
|
Stein Magnus Jodal |
Mar 20, 2020 |
|
| Printed |
Page 100
First code example |
Line 4 is:
pt.y < polygon.bbox.y[1] || pt.y > polygon.bbox.y[1]) {
The index in the lower bound check should be 0, not 1:
pt.y < polygon.bbox.y[0] || pt.y > polygon.bbox.y[1]) {
Note from the Author or Editor:
This has been fixed in the second release (March 2020). |
Stein Magnus Jodal |
Mar 23, 2020 |
|
| Printed |
Page 101
Second code example |
Line 6 is:
pt.y < x[0] || pt.y > y[1]) {
Instead of comparing with the lower x boundary, it should compare with the lower y boundary:
pt.y < y[0] || pt.y > y[1]) {
Note from the Author or Editor:
This has been fixed in the second release. |
Stein Magnus Jodal |
Mar 23, 2020 |
|
| Printed |
Page 103
bottom paragraph |
This is a sentence fragment: "Within an async function, awaiting a Promise that throws an exception."
It should read: "Within an async function, awaiting a Promise that *rejects* throws an exception."
|
Dan Vanderkam
|
Jan 26, 2020 |
Mar 06, 2020 |
| Printed |
Page 151
bottom code sample |
The isSorted code sample reads:
if (xs[i] > xs[i - 1]) {
return false;
}
It should be "<", not ">".
|
Dan Vanderkam
|
Nov 18, 2019 |
Mar 06, 2020 |
| Printed |
Page 173
Continuation of the example from page 172 |
devDependencies should include @types/react
Note from the Author or Editor:
@types/lodash should be @types/react. Thanks for catching this mistake! |
Anonymous |
Jan 06, 2020 |
Mar 06, 2020 |
|
| |
