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Blog - Using Observables to make our app work with barcode scanners
const ENTER_KEY_CODE = 13
const MAX_INTERVAL_BETWEEN_EVENTS_IN_MS = 50
let keyCodesBuffer = []
document.addEventListener("keypress", (event) => {
const keyCode = event.keyCode
if(keyCode === ENTER_KEY_CODE) {
fillInputWithKeyCodesBuffer()
cleanBuffer()
} else {
addToBuffer(keyCode)
cleanBufferAfter(MAX_INTERVAL_BETWEEN_EVENTS_IN_MS)
}
})
function fillInputWithKeyCodesBuffer() {
//
}
function cleanBuffer() {
keyCodesBuffer = []
}
function addToBuffer(keyCode) {
keyCodesBuffer.push(keyCode)
}
function cleanBufferAfter(timeout) {
setTimeout(cleanBuffer, timeout)
}
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