joyent-portal/ui/src/shared/match.js
2016-12-12 10:28:48 +00:00

72 lines
1.3 KiB
JavaScript

const find = require('lodash.find');
const isFunction = require('lodash.isfunction');
/**
* get values based on the props
*
* ```js
* const matchable = match({
* large: 20,
* small: 10,
* medium: (props) => props.isBlue ? 15 : false
* }, 'initial');
*
* matchable({
* large: true,
* medium: true,
* isBlue: true
* }); //=> 20
*
* matchable({
* isBlue: true
* }); //=> 'initial'
*
* matchable({
* isBlue: true,
* medium: true
* }); //=> 15
* ```
**/
module.exports = (obj = {}, initial = '') => (props) => {
const key = find(Object.keys(obj), (key) => props[key]);
if (!key) {
return initial;
}
const op = obj[key];
return isFunction(op) ? op(props) : op;
};
/**
* get values based on the props[prop]
*
* ```js
* const matchable = match.map({
* large: 20,
* small: 10,
* medium: (prop) => prop > 5 ? 15 : false
* }, 'initial');
*
* matchable('type')({
* type: 'large'
* }); //=> 20
*
* matchable('type')(); //=> 'initial'
*
* matchable('type'){
* type: 6
* }); //=> 15
* ```
**/
module.exports.prop = (obj = {}, initial = '') => (prop) => (props = {}) => {
const value = props[prop];
if (!value) {
return initial;
}
const op = obj[value];
return isFunction(op) ? op(value) : op;
};