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import Ember from 'ember'; | |
// items: [{price: 3.40, qty: 3.134}, {price: 1.39, qty: 2.2}], | |
function totalWithRoundedValue(itemsPropName) { | |
return Ember.computed(`${itemsPropName}.@each.{price,qty}`, function(key) { | |
// Calculate the new total | |
let newTotal = this[itemsPropName] | |
.reduce((tot, item) => tot + (item.price * item.qty), 0); | |
// Create a rounded value as another property | |
Ember.set(this, `${key}Rounded`, Math.round(newTotal * 100) / 100); | |
return newTotal; | |
}) | |
} | |
export default Ember.Controller.extend({ | |
appName: 'Ember Twiddle', | |
items: [{price: 3.40, qty: 3.134}, {price: 1.39, qty: 2.2}], | |
total: totalWithRoundedValue('items') | |
}); |
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{ | |
"version": "0.15.0", | |
"EmberENV": { | |
"FEATURES": {} | |
}, | |
"options": { | |
"use_pods": false, | |
"enable-testing": false | |
}, | |
"dependencies": { | |
"jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js", | |
"ember": "3.2.2", | |
"ember-template-compiler": "3.2.2", | |
"ember-testing": "3.2.2" | |
}, | |
"addons": { | |
"ember-data": "3.2.0" | |
} | |
} |
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