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If called multiple times, only insert one script #19

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If called multiple times, only insert one script #19

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5 changes: 4 additions & 1 deletion index.js
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Original file line number Diff line number Diff line change
@@ -1,5 +1,9 @@
/*! load-script2. MIT License. Feross Aboukhadijeh <https://feross.org/opensource> */
module.exports = function loadScript2 (src, attrs, parentNode) {
const node = parentNode || document.head || document.getElementsByTagName('head')[0]
const existingScript = node.querySelector(`:scope > script[src="${src}"]`)
if (existingScript) return existingScript
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@caub caub Apr 2, 2021 •
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@feross this allows to cache the added script

it can be useful when you render more than once a component that uses loadScript, for example a modal component


return new Promise((resolve, reject) => {
const script = document.createElement('script')
script.async = true
Expand All @@ -19,7 +23,6 @@ module.exports = function loadScript2 (src, attrs, parentNode) {
reject(new Error(`Failed to load ${src}`))
}

const node = parentNode || document.head || document.getElementsByTagName('head')[0]
node.appendChild(script)
})
}