JavaScript笔记

onClick函数自定义参数

let onClick = function (dom, obj) {
    if (dom.avtive) {
        dom.avtive = false;
        hide();
    } else {
        dom.avtive = true;
        show(dom, obj)
    }
}
let appendDomEvent = function (dom, obj) {
    if (obj.event == 'click') {
        dom.addEventListener('click', function () {
            return onClick(dom, obj);
        }, false)
    }
    if (obj.event == 'mouseouver') {
        dom.addEventListener('mouseover', function () {
            return onMouseOver(dom, obj);
        }, false)
        dom.addEventListener('mouseout', function () {
            return onMouseOut(dom, obj);
        }, false)
    }
}

对象数据根据属性排序

let objectArray = [
    {name:'小红',subject:'math',grade:95},
    {name:'小黄',subject:'math',grade:75},
    {name:'小蓝',subject:'math',grade:84},
    {name:'小# CCCCCC',subject:'math',grade:59},
]
function compare(T){
    return function(a,b){
        let v1 = a[T],v2 = b[T];
        return v2 - v1;
    }
}
objectArray.sort(compare('grade'));
console.log(objectArray);

一个前端连点器

var dom = document.getElementsByTagName("canvas")[0];
var oEvent;
oEvent = document.createEvent("MouseEvent");
oEvent.initMouseEvent("mousedown", true, false, document.defaultView, 0, 500, 500, 500,500);
function imitateClick() {dom.dispatchEvent(oEvent);}
setInterval(imitateClick,100);