JavaScript practical small functions (code examples)

The content this article brings to you is about JavaScript practical functions, which has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

1. My own modified method of getting class

// 获取class
<script type="text/javascript">
function getByClass(oParent,sClass){
        var aEle=oParent.getElementsByTagName("*");
        var aResult=[];
        for(var i=0,tt=aEle.length;i<tt;i++){ if(aele[i].classname.indexof(sclass)="">=0){
                        var arr_class=aEle[i].className.split(" ");
                        for(var j=0,len=arr_class.length;j<len;j++){ if(arr_class[j]="=sClass){" aresult.push(aele[i]);="" }="" return="" aresult;="" <="" script>="" <="" pre=""></len;j++){></tt;i++){>

2. Get element style

// 获取样式
function getStyle(obj,name){
    if(obj.currentStyle){
        return obj.currentStyle[name];
    }
    else{
        return getComputedStyle(obj,false)[name];
    }
}

3. Prevent event bubbling

// 阻止事件冒泡
function stopBubble(e){
        if(e && e.stopPropagation){
                e.stopPropagation();
        }
        else{
                window.event.cancelBubble=true;
        }
        return false;
}

4. Full screen mode

// 退出全屏
function exitFullScreen() {
    var el = document,
    cfs = el.cancelFullScreen || el.webkitCancelFullScreen || el.mozCancelFullScreen || el.exitFullScreen,
    wscript;
    if (typeof cfs != "undefined" && cfs) {
      cfs.call(el);
      return;
    }
    if (typeof window.ActiveXObject != "undefined") {
        wscript = new ActiveXObject("WScript.Shell");
        if (wscript != null) {
            wscript.SendKeys("{F11}");
        }
          }
}

The above is the complete introduction to JavaScript’s practical functions. If you want to know more about JavaScript video tutorial, please pay attention to the PHP Chinese website .

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