@mdui/jq/shared/helper.js

拥有和 jQuery 相似 API 的轻量级 JavaScript 工具库

/**
 * 获取指定元素的标签名（小写），不存在元素的返回空字符串
 * @param element
 */
export const getNodeName = (element) => {
    return element?.nodeName.toLowerCase() ?? '';
};
/**
 * 判断元素是否为指定的标签名（不区分大小写）
 * @param element
 * @param name
 */
export const isNodeName = (element, name) => {
    return element?.nodeName.toLowerCase() === name.toLowerCase();
};
// eslint-disable-next-line @typescript-eslint/no-unsafe-function-type
export const isFunction = (target) => {
    return typeof target === 'function';
};
export const isString = (target) => {
    return typeof target === 'string';
};
export const isNumber = (target) => {
    return typeof target === 'number';
};
export const isBoolean = (target) => {
    return typeof target === 'boolean';
};
export const isUndefined = (target) => {
    return typeof target === 'undefined';
};
export const isNull = (target) => {
    return target === null;
};
export const isWindow = (target) => {
    return typeof Window !== 'undefined' && target instanceof Window;
};
export const isDocument = (target) => {
    return typeof Document !== 'undefined' && target instanceof Document;
};
export const isElement = (target) => {
    return typeof Element !== 'undefined' && target instanceof Element;
};
export const isNode = (target) => {
    return typeof Node !== 'undefined' && target instanceof Node;
};
export const isArrayLike = (target) => {
    return (!isFunction(target) &&
        !isWindow(target) &&
        isNumber(target.length));
};
export const isObjectLike = (target) => {
    return typeof target === 'object' && target !== null;
};
export const toElement = (target) => {
    return isDocument(target) ? target.documentElement : target;
};
/**
 * 把用 - 分隔的字符串转为驼峰（如 box-sizing 转换为 boxSizing）
 * @param string
 */
export const toCamelCase = (string) => {
    return string.replace(/-([a-z])/g, (_, letter) => {
        return letter.toUpperCase();
    });
};
/**
 * 把驼峰法转为用 - 分隔的字符串（如 boxSizing 转换为 box-sizing）
 * @param string
 */
export const toKebabCase = (string) => {
    if (!string) {
        return string;
    }
    return string
        .replace(/^./, string[0].toLowerCase()) // 首字母转小写
        .replace(/[A-Z]/g, (replacer) => {
        return '-' + replacer.toLowerCase();
    });
};
/**
 * 始终返回 false 的函数
 */
export const returnFalse = () => {
    return false;
};
/**
 * 始终返回 true 的函数
 */
export const returnTrue = () => {
    return true;
};
/**
 * 遍历数组
 * @param target
 * @param callback
 */
export const eachArray = (target, callback) => {
    for (let i = 0; i < target.length; i += 1) {
        if (callback.call(target[i], target[i], i) === false) {
            return target;
        }
    }
    return target;
};
/**
 * 遍历对象
 * @param target
 * @param callback
 */
export const eachObject = (target, callback) => {
    const keys = Object.keys(target);
    for (let i = 0; i < keys.length; i += 1) {
        const key = keys[i];
        if (callback.call(target[key], key, target[key]) === false) {
            return target;
        }
    }
    return target;
};