xiaoshi-wx/node_modules/wux-weapp/packages/es/helpers/shared/throttle.js

import { debounce } from './debounce'
import { isObject } from './isObject'

let FUNC_ERROR_TEXT = 'Expected a function'

export function throttle(func, wait, options) {
    let leading = true,
        trailing = true

    if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT)
    }
    if (isObject(options)) {
        leading = 'leading' in options ? !!options.leading : leading
        trailing = 'trailing' in options ? !!options.trailing : trailing
    }
    return debounce(func, wait, {
        'leading': leading,
        'maxWait': wait,
        'trailing': trailing,
    })
}