67 lines
1.5 KiB
TypeScript
67 lines
1.5 KiB
TypeScript
export let capitalise0 = (name: string): string =>
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name && name[0].toUpperCase() + name.slice(1)
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export function debounce<ArgType>(
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timeout: number,
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fn: (arg: ArgType) => void
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): (arg: ArgType) => void {
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let timeoutId: ReturnType<typeof setTimeout>
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return (...args) => {
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clearTimeout(timeoutId)
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timeoutId = setTimeout(() => fn(...args), timeout)
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}
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}
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export function isIE(): boolean {
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return (
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navigator.appName == 'Microsoft Internet Explorer' ||
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(navigator.appName == 'Netscape' &&
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new RegExp('Trident/.*rv:([0-9]{1,}[.0-9]{0,})').exec(
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navigator.userAgent
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) != null)
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)
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}
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export function inIframe(): boolean {
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try {
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return window.self !== window.top
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} catch (e) {
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return true
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}
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}
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export function softCatch<ArgType, ReturnType>(
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fn: (arg: ArgType) => ReturnType
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): (arg: ArgType) => ReturnType | null {
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return function(...args) {
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try {
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return fn(...args)
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} catch (e) {
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// eslint-disable-next-line no-console
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console.warn(e)
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return null
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}
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}
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}
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export function mapOrApply<A, B>(
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fn: (a: A) => B,
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x: Array<A> | A
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): Array<B> | B {
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return Array.isArray(x) ? x.map(fn) : fn(x)
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}
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export function coerceArray<A>(x: A | Array<A>): Array<A> {
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return Array.isArray(x) ? x : [x]
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}
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export function getSessionStorage() {
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// In some browsers like Brave, even just reading the variable sessionStorage
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// is throwing an error in the iframe, so we can't do things if sessionStorage !== undefined
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// and we need to wrap it in a try { } catch { } logic
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try {
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return window.sessionStorage
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} catch (e) {
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return undefined
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}
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}
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