react-antd-admin-panel/dist/typescript/utils/Helpers.js

Easy prototyping admin panel using React and Antd

export default class Helpers {
    static getIndicesOf(searchStr, str, caseSensitive) {
        let searchStrLen = searchStr.length;
        if (searchStrLen == 0)
            return [];
        let startIndex = 0;
        let index;
        let indices = [];
        if (!caseSensitive) {
            str = str.toLowerCase();
            searchStr = searchStr.toLowerCase();
        }
        while ((index = str.indexOf(searchStr, startIndex)) > -1) {
            indices.push(index);
            startIndex = index + searchStrLen;
        }
        return indices;
    }
    static hash(value, length = 8) {
        value = Helpers.safeStringify(value);
        let hash = 5381;
        let index = value.length;
        while (index)
            hash = (hash * 33) ^ value.charCodeAt(--index);
        hash = hash >>> 0;
        return hash.toString(length);
    }
    static safeStringify(obj, indent = 2) {
        let cache = [];
        const retVal = JSON.stringify(obj, (value) => typeof value === "object" && value !== null
            ? cache.includes(value)
                ? undefined // Duplicate reference found, discard key
                : cache.push(value) && value // Store value in our collection
            : value, indent);
        cache = null;
        return retVal;
    }
    ;
    static stamp() {
        return `S${new Date().getSeconds().toString()}-M${new Date().getMilliseconds().toString()}`;
    }
    static store(data, has, fallback) {
        return Helpers.inside(data, `c.request.store.${has}`, fallback);
    }
    static inside(data, has, fallback = undefined) {
        if (typeof has === 'string')
            has = has.split('.');
        let temp = data;
        let fail = false;
        has.forEach((r) => {
            if (!temp)
                fail = true;
            if (!fail && r in temp) {
                temp = temp[r];
            }
            else {
                temp = undefined;
            }
        });
        return temp !== null && temp !== void 0 ? temp : fallback;
    }
}
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