工具函数

工具函数

• 获取url hash参数

function getParameter(n) {
    var m = window.location.hash.match(new RegExp('(?:#|&)' + n + '=([^&]*)(&|$)')),
        result = !m ? '' : decodeURIComponent(m[1])
    return result ||getParameterByName(n)
}

function getParameterByName(name, url) {
    if (!url) url = window.location.href
    name = name.replace(/[\[\]]/g, "\\$&")
    var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"),
        results = regex.exec(url)
    if (!results) return null
    if (!results[2]) return ''
    return decodeURIComponent(results[2].replace(/\+/g, " "))
}

• JSONP跨域

function loadScript(src, callback){
    var s,
        r,
        t
    r = false
    s = document.createElement('script')
    s.type = 'text/javascript'
    s.src = src
    s.onload = s.onreadystatechange = function() {
        //console.log( this.readyState ); //uncomment this line to see which ready states are called.
        if ( !r && (!this.readyState || this.readyState == 'complete') )
        {
            r = true
            callback()
        }
    }
    t = document.getElementsByTagName('script')[0]
    t.parentNode.insertBefore(s, t)
}

工具函数

原文：https://www.cnblogs.com/gongxiansheng/p/11259296.html