@ssports_fe/ssutils/addClass.js

前端业务代码工具库

const addClass = (el, cls) => {
    if (!el) return;
    let curClass = el.className;
    const classes = (cls || '').split(' ');

    for (let i = 0, j = classes.length; i < j; i++) {
        const clsName = classes[i];
        if (!clsName) continue;

        if (el.classList) {
            el.classList.add(clsName);
        } else {
            if (!hasClass(el, clsName)) {
                curClass += ' ' + clsName;
            }
        }
    }
    if (!el.classList) {
        el.className = curClass;
    }
};

module.exports = addClass;