JavaScript detection string contains HTML tag implementation method _javascript Tips

Functional code

Copy Code code as follows:

/**
* Whether the string contains the HTML tag detection
* @param htmlstr
*/
function checkhtml (HTMLSTR) {
var reg =/<[^>]+>/g;
Return Reg.test (HTMLSTR);
}

Demo
Script

Copy Code code as follows:

/**
* Whether the string contains the HTML tag detection
* @param htmlstr
*/
function checkhtml (HTMLSTR) {
var reg =/<[^>]+>/g;
Return Reg.test (HTMLSTR);
}
Window.onload=function () {
var html=document.queryselector (' #box '). InnerHTML;
Alert (checkhtml (HTML))
}

Html

Copy Code code as follows:

<div id= "box" >
Sdfsdf
<div></div>
<span>sdfsdf</span>
</div>