francois/HowBadIsMyBatch
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displaying 'Loading...' text while ajax requesting

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frankknoll
2023-01-28 22:30:29 +01:00
parent a88059f754
commit a32a74c297
1 changed files with 3 additions and 1 deletions
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4
docs/HistogramView.js
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@@ -7,10 +7,12 @@ class HistogramView {
} }
displayHistogramsForBatchcode(batchcode) { displayHistogramsForBatchcode(batchcode) {
// FK-TODO: zeige "Loading..." bis Daten geladen sind. const loadingText = document.createTextNode('Loading...');
this.#uiContainer.appendChild(loadingText);
fetch(`data/histograms/${batchcode}.json`) fetch(`data/histograms/${batchcode}.json`)
.then(response => response.json()) .then(response => response.json())
.then(histoDescrs => { .then(histoDescrs => {
loadingText.remove();
for (const histoDescr of histoDescrs.histograms) { for (const histoDescr of histoDescrs.histograms) {
const canvas = document.createElement("canvas"); const canvas = document.createElement("canvas");
this.#uiContainer.appendChild(canvas); this.#uiContainer.appendChild(canvas);