| 1 |
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| 2 |
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| 3 | import { toArray } from '../util/index'
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| 4 |
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| 5 | export function initUse (Vue: GlobalAPI) {
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| 6 | Vue.use = function (plugin: Function | Object) {
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| 7 | const installedPlugins = (this._installedPlugins || (this._installedPlugins = []))
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| 8 | if (installedPlugins.indexOf(plugin) > -1) {
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| 9 | return this
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| 10 | }
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| 11 |
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| 12 |
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| 13 | const args = toArray(arguments, 1)
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| 14 | args.unshift(this)
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| 15 | if (typeof plugin.install === 'function') {
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| 16 | plugin.install.apply(plugin, args)
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| 17 | } else if (typeof plugin === 'function') {
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| 18 | plugin.apply(null, args)
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| 19 | }
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| 20 | installedPlugins.push(plugin)
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| 21 | return this
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| 22 | }
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| 23 | }
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