Files
rts/js/helpers.js
T
2020-04-28 14:31:19 +01:00

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 });
});
}