js-select

js-select

js-select is a little mashup of js-traverse and a subset of JSONSelect.

It lets you traverse and modify JavaScript object nodes that match JSONSelect selectors:

var select = require("js-select");

var people = {
   george: {
       age : 35,
       movie: "Repo Man"
   },
   mary: {
       age: 15,
       movie: "Twilight"
   }
}

select(people, ".age").forEach(function(age) {
     // make everyone look younger!
    this.update(age - 5);
})

select(people, ".age").nodes();  // [30, 10]

See js-traverse for all the things you can do to modify the node. The forEach() callback will get the same context (this) as the forEach() callback in js-traverse, plus a this.matches() which will test if the node matches a selector:

select(obj).forEach(function(node) {
    if(this.matches(".movie")) {
        this.update(node.toLowerCase());
    }
}

selectors

js-select supports the following JSONSelect selectors so far:

"*"
".key"
".ancestor .key"
".parent > .key"

install

Download the code, then with npm:

npm install js-select

Get a browser file after npm-installing using browserify