sealday
bbf19d31c7
Co-authored-by: sealday <sealday@gmail.com> Reviewed-on: daoyoucloud/tachycode#718 Co-authored-by: sealday <zhanglin@daoyoucloud.com> Co-committed-by: sealday <zhanglin@daoyoucloud.com>
69 lines
1.6 KiB
TypeScript
69 lines
1.6 KiB
TypeScript
export const isString = (value: any): value is string => {
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return typeof value === 'string';
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};
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export const isArray = (value: any): value is Array<any> => {
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return Array.isArray(value);
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};
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export const isEmpty = (value: unknown) => {
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if (isPlainObject(value)) {
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return Object.keys(value).length === 0;
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}
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if (Array.isArray(value)) {
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return value.length === 0;
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}
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return !value;
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};
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export const isPlainObject = (value) => {
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if (Object.prototype.toString.call(value) !== '[object Object]') {
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return false;
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}
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const prototype = Object.getPrototypeOf(value);
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return prototype === null || prototype === Object.prototype;
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};
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export const hasEmptyValue = (objOrArr: object | any[]) => {
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let result = true;
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for (const key in objOrArr) {
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result = false;
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if (isArray(objOrArr[key]) && objOrArr[key].length === 0) {
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return true;
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}
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if (!objOrArr[key]) {
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return true;
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}
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if (isPlainObject(objOrArr[key]) || isArray(objOrArr[key])) {
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return hasEmptyValue(objOrArr[key]);
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}
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}
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return result;
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};
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export const nextTick = (fn: () => void) => {
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setTimeout(fn);
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};
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export function fuzzysearch(needle: string, haystack: string): boolean {
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const hlen = haystack.length;
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const nlen = needle.length;
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if (nlen > hlen) {
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return false;
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}
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if (nlen === hlen) {
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return needle === haystack;
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}
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outer: for (let i = 0, j = 0; i < nlen; i++) {
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const nch = needle.charCodeAt(i);
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while (j < hlen) {
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if (haystack.charCodeAt(j++) === nch) {
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continue outer;
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}
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}
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return false;
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}
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return true;
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}
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