29 lines
803 B
JavaScript
29 lines
803 B
JavaScript
/**
|
|
* Function to randomise an array order
|
|
* @param {array} array
|
|
*/
|
|
export function shuffleArray(array) {
|
|
var currentIndex = array.length, temporaryValue, randomIndex;
|
|
// While there remain elements to shuffle...
|
|
while (0 !== currentIndex) {
|
|
// Pick a remaining element...
|
|
randomIndex = Math.floor(Math.random() * currentIndex);
|
|
currentIndex -= 1;
|
|
// And swap it with the current element.
|
|
temporaryValue = array[currentIndex];
|
|
array[currentIndex] = array[randomIndex];
|
|
array[randomIndex] = temporaryValue;
|
|
}
|
|
return array;
|
|
}
|
|
|
|
export function urltoFile(url, filename, mimeType) {
|
|
return fetch(url)
|
|
.then(function (res) {
|
|
return res.arrayBuffer();
|
|
})
|
|
.then(function (buf) {
|
|
return new File([buf], filename, { type: mimeType });
|
|
});
|
|
}
|