/
script.js
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/
script.js
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javascript: (() => {
const observations = document.querySelectorAll(".Observation");
if (observations.length === 0) {
alert("No eBird observations found on page!");
return;
}
if (document.querySelector("[data-species]")) {
alert(
"Already run script. If you are having issues, reload page and try again."
);
return;
}
const parentContainer = observations[0].parentNode;
function getSpeciesName(observation) {
return observation.querySelector(".Observation-species .Heading-main")
.innerText;
}
function getUniqueSpeciesList(observations) {
let uniqueSpecies = new Set();
for (const observation of observations) {
const commonName = getSpeciesName(observation);
uniqueSpecies.add(commonName);
}
return uniqueSpecies;
}
function createUniqueSpeciesWrappers(uniqueSpeciesArray, containerNode) {
for (const species of uniqueSpeciesArray) {
// Create wrapper node
const detailsNode = document.createElement("details");
// Add data-species attribute
detailsNode.setAttribute("data-species", species);
// Add spacing styles
detailsNode.setAttribute("style", "margin-top: 0.5em");
// Create summary node
const summaryNode = document.createElement("summary");
// Style to visually indicate clickability
summaryNode.setAttribute("style", "cursor: pointer; list-style:");
// Insert species name into summary element
summaryNode.innerText = species;
// Add summary element to details
detailsNode.appendChild(summaryNode);
// Add details element to container
containerNode.appendChild(detailsNode);
}
}
function moveObservationsIntoWrappers(observations) {
for (let observation of observations) {
const commonName = getSpeciesName(observation);
const detailNode = document.querySelector(
`[data-species="${commonName}"]`
);
const spacerNode = observation.previousElementSibling;
detailNode.appendChild(spacerNode);
detailNode.appendChild(observation);
}
}
function appendSpeciesObsCount(list) {
for (species of list) {
const observationCount = document
.querySelectorAll(`[data-species="${species}"] .Observation`)
.length.toString();
const summaryNode = document.querySelector(
`[data-species="${species}"] summary`
);
summaryNode.innerText = `${summaryNode.innerText} (${observationCount})`;
}
}
// GO GO GO!
const uniqueSpeciesList = getUniqueSpeciesList(observations);
createUniqueSpeciesWrappers(uniqueSpeciesList, parentContainer);
moveObservationsIntoWrappers(observations);
appendSpeciesObsCount(uniqueSpeciesList);
})();