utils.ts

1	export function generateHash(text: string) {
2	var hash = 0;
3	if (text.length == 0) {
4	return hash;
5	}
6	for (let i = 0; i < text.length; i++) {
7	var charCode = text.charCodeAt(i);
8	hash = (hash << 7) - hash + charCode;
9	hash = hash & hash;
10	}
11	return hash;
12	}
13
14	export async function delay(delayInMs: number) {
15	return new Promise((resolve) => {
16	setTimeout(() => {
17	resolve(2);
18	}, delayInMs);
19	});
20	}
21
22	export async function copyToClipboard(textToCopy): Promise<void> {
23	// navigator clipboard api needs a secure context (https)
24	if (navigator.clipboard && window.isSecureContext) {
25	// navigator clipboard api method'
26	return navigator.clipboard.writeText(textToCopy);
27	} else {
28	// text area method
29	let textArea = document.createElement("textarea");
30	textArea.value = textToCopy;
31	// make the textarea out of viewport
32	textArea.style.position = "fixed";
33	textArea.style.left = "-999999px";
34	textArea.style.top = "-999999px";
35	document.body.appendChild(textArea);
36	textArea.focus();
37	textArea.select();
38	return new Promise((res, rej) => {
39	// here the magic happens
40	document.execCommand('copy') ? res() : rej();
41	textArea.remove();
42	});
43	}
44	}