Comments (2)
my code
function _get (source, path, defaultValue = undefined) {
// translate array case to dot case, then split witth .
// a[0].b -> a.0.b -> ['a', '0', 'b']
const keyList = path.replace(/\[(\d+)\]/g, '.$1').split('.')
const result = keyList.reduce((obj, key) => {
return Object(obj)[key]; // null undefined get attribute will throwError, Object() can return a object
}, source)
return result === undefined ? defaultValue : result;
}
from fe-learning.
这个有个问题,如何 result === false,那不就返回 defaultValue 了吗
from fe-learning.
Related Issues (20)
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from fe-learning.