zent/es/utils/debounce.js

一套前端设计语言和基于React的实现

export default function debounce(func, wait, options) {
    if (wait === void 0) { wait = 0; }
    if (options === void 0) { options = {}; }
    var timeout;
    var result;
    var later = function (args) {
        timeout = null;
        if (args !== undefined) {
            result = func.apply(void 0, args);
        }
    };
    var debounced = function () {
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        if (timeout) {
            clearTimeout(timeout);
        }
        if (options.immediate) {
            var callNow = !timeout;
            timeout = setTimeout(later, wait);
            if (callNow) {
                result = func.apply(void 0, args);
            }
        }
        else {
            timeout = setTimeout(function () {
                later(args);
            }, wait);
        }
        return result;
    };
    debounced.cancel = function () {
        clearTimeout(timeout);
        timeout = null;
    };
    return debounced;
}