how to delete text in javascript code example

Example 1: How to remove text from a string in javscript

var ret = "data-123".replace('data-','');
console.log(ret);   //prints: 123

Example 2: javascript remove html from text

//remove html tags from a string, leaving only the inner text
function removeHTML(str){ 
    var tmp = document.createElement("DIV");
    tmp.innerHTML = str;
    return tmp.textContent || tmp.innerText || "";
}
var html = "<div>Yo Yo Ma!</div>";
var onlyText = removeHTML(html); "Yo Yo Ma!"