nodejs/nodebestpractices
1
0
Fork 0
mirror of https://github.com/goldbergyoni/nodebestpractices.git synced 2025-11-02 02:55:40 +08:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #237 from sbernaldev/patch-1

Browse Source 
Use ES6 async/await in the example
This commit is contained in:
Yoni Goldberg
2018-09-16 22:21:03 +03:00
committed by GitHub
parent 7cec7b4898 6682078974
commit a03449bc56
1 changed files with 82 additions and 78 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
sections/errorhandling/useonlythebuiltinerror.md
View File

@ -16,12 +16,16 @@ const myEmitter = new MyEmitter();
myEmitter.emit('error', new Error('whoops!')); myEmitter.emit('error', new Error('whoops!'));
// 'throwing' an Error from a Promise // 'throwing' an Error from a Promise
return new Promise(function (resolve, reject) { const addProduct = async (productToAdd) => {
return DAL.getProduct(productToAdd.id).then((existingProduct) => { try {
if(existingProduct != null) const existingProduct = await DAL.getProduct(productToAdd.id);
reject(new Error("Why fooling us and trying to add an existing product?")); if (existingProduct !== null) {
}); throw new Error("Product already exists!");
}); }
} catch (err) {
// ...
}
}
``` ```
### Code example – Anti Pattern ### Code example – Anti Pattern