peek
v1.0.1
Published
Retrieve nested object properties easily.
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peek
Access deeply nested object properties using a path string.
Advantages over literal access
- The expression
obj.foo.bar
will throw a TypeError ifobj.foo
is not an object. peeking will yieldundefined
, instead. - Wacky property names:
obj['the question is']["'doctor who?'"]
is verbose compared to peeking withthe question is.'doctor who?'
.
Other uses for peek
- Accessing variably-nested properties programmatically.
- Accessing the same nested property of multiple objects.
Usage
var peek = require('peek')
var booty = peek("lower deck.captain's quarters.secret panel.treasure")
var pirate_ship = {
'lower deck': {
"captain's quarters": {
'secret panel': {
treasure: '5000 gold'
}
}
}
}
console.log(booty(pirate_ship)) // == "5000 gold"
Limitations
Property names may not contain dots, as all dots are interpreted as object key separators.
Running the tests
$ git clone https://github.com/adamdicarlo/peek.git # clone or fork
$ cd peek
$ npm install
$ npm test
License
MIT