mirror of https://github.com/vuejs/vue.git
36 lines
789 B
JavaScript
36 lines
789 B
JavaScript
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var _ = require('../util')
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var objectAgumentations = Object.create(Object.prototype)
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/**
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* Add a new property to an observed object
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* and emits corresponding event
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*
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* @param {String} key
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* @param {*} val
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* @public
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*/
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_.define(objectAgumentations, '$add', function (key, val) {
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if (this.hasOwnProperty(key)) return
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this[key] = val
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this.$observer.convert(key, val)
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this.$observer.emit('add', key, val)
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})
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/**
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* Deletes a property from an observed object
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* and emits corresponding event
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*
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* @param {String} key
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* @public
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*/
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_.define(objectAgumentations, '$delete', function (key) {
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if (!this.hasOwnProperty(key)) return
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// trigger set events
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this[key] = undefined
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delete this[key]
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this.$observer.emit('delete', key)
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})
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module.exports = objectAgumentations
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