excuse me, what is the purpose of the lines of code in main.js ?
if (!window.Promise) {
window.Promise = Promise;
}
and Promise on window? What is the general use environment?
excuse me, what is the purpose of the lines of code in main.js ?
if (!window.Promise) {
window.Promise = Promise;
}
and Promise on window? What is the general use environment?
means that if there is no Promise, on window, assign it a Promise
to see if there is no Promise, in your window scope, then save it to window scope with the Promise you introduced.
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