23 lines
542 B
JavaScript
23 lines
542 B
JavaScript
function loadScript(src) {
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return new Promise(function(resolve, reject) {
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let script = document.createElement('script');
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script.src = src;
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script.onload = () => resolve(script);
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script.onerror = () => reject(new Error("Script load error: " + src));
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document.head.append(script);
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});
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}
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loadScript("/article/promise-chaining/one.js")
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.then(script => {
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return {
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then(resolve, reject) {
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setTimeout(() => resolve(script), 1000);
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}
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};
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})
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.then(function(script) {
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alert(one);
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});
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