snapdragon-stack 
Snapdragon utility for creating a stack.
Please consider following this project's author, Jon Schlinkert, and consider starring the project to show your :heart: and support.
Install
Install with npm:
$ npm install --save snapdragon-stack
Usage
const Stack = require('snapdragon-stack');
API
Get the first element in the stack.
Example
const Stack = require('snapdragon-stack');
stack.push('a');
stack.push('b');
stack.push('c');
console.log(stack.first()); //=> 'a'
Get the nth element from the end of the stack.
Params
n {Number}returns {Object}
Example
const stack = new Stack();
stack.push('aaa');
stack.push('bbb');
stack.push('ccc');
stack.push('ddd');
console.log(stack.lookbehind(1)); //=> 'ddd'
console.log(stack.lookbehind(2)); //=> 'ccc'
console.log(stack.lookbehind(3)); //=> 'bbb'
Get the last element in the stack.
Example
const Stack = require('snapdragon-stack');
stack.push('a');
stack.push('b');
stack.push('c');
console.log(stack.last()); //=> 'c'
Semantic alias for stack.last().
Example
const Stack = require('snapdragon-stack');
stack.push({ type: 'root' });
console.log(stack.current()); //=> { type: 'root' }
Get the second-to-last item in the stack.
Example
const Stack = require('snapdragon-stack');
stack.push('a');
stack.push('b');
stack.push('c');
console.log(stack.prev()); //=> 'b'
If the .first element in the stack is an object with a .nodes array, the first item from stack.first().nodes is returned.
Example
const Stack = require('snapdragon-stack');
const Node = require('snapdragon-node');
const node = new Node({ type: 'brace' });
node.push(new Node({ type: 'brace.open', value: '{' }));
node.push(new Node({ type: 'text', value: 'a,b,c' }));
node.push(new Node({ type: 'brace.close', value: '}' }));
stack.push(node);
console.log(stack.firstChild()); //=> Node { type: 'brace.open', value: '{' }
If the .last element in the stack is an object with a .nodes array, the last item from last.nodes is returned.
Example
const Stack = require('snapdragon-stack');
const Node = require('snapdragon-node');
const node = new Node({ type: 'brace' });
node.push(new Node({ type: 'brace.open', value: '{' }));
node.push(new Node({ type: 'text', value: 'a,b,c' }));
node.push(new Node({ type: 'brace.close', value: '}' }));
stack.push(node);
console.log(stack.lastChild()); //=> Node { type: 'brace.close', value: '}' }
About
Contributing
Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.
Please read the contributing guide for advice on opening issues, pull requests, and coding standards.
Running Tests
Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
$ npm install && npm test
Building docs
(This project's readme.md is generated by verb, please don't edit the readme directly. Any changes to the readme must be made in the .verb.md readme template.)
To generate the readme, run the following command:
$ npm install -g verbose/verb#dev verb-generate-readme && verb
Author
Jon Schlinkert
License
Copyright © 2018, Jon Schlinkert.
Released under the MIT License.
This file was generated by verb-generate-readme, v0.6.0, on January 21, 2018.
