const scripts = {}
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export default function loadScript (globalName, src, callback) {
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const globalObject = typeof globalName === 'string' ? window[globalName] : globalName
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if (globalObject) {
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callback()
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return
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}
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let callbacks = scripts[src]
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if (!callbacks) {
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callbacks = scripts[src] = []
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const script = document.createElement('script')
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script.src = src
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document.body.appendChild(script)
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script.onload = function () {
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callbacks.forEach(callback => callback())
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delete scripts[src]
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}
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}
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callbacks.push(callback)
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}
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