DOM Events

DOM Events

by dipaks2011

HTML

<!-- <button id="b1" onclick="showID(this.id)">B1</button>
<button id="b2" onclick="showID(this.id)">B2</button>
<button id="b3" onclick="showID(this.id)">B3</button>
<button id="b4" onclick="showID(this.id)">B4</button> -->

<button id="some_id1">324</button>
<button id="some_id2">324</button>
<button id="some_id3">32</button>
<button id="some_id4">23</button>
<button id="some_id5">432</button>

JavaScript

/*function showID(someId){
	console.log(someId);
}*/

/////////////////////////

/*var buttons = document.getElementsByTagName("button");
var buttonsCount = buttons.length;
for (var i = 0; i <= buttonsCount; i += 1) {
    buttons[i].onclick = function() {
        alert(this.id);
    };
};
*/

/////////////////////////
//http://stackoverflow.com/questions/1789945/how-to-check-if-one-string-contains-another-substring-in-javascript 

var string = "foo",
    substring = "fo";
var hasIt = string.includes(substring);
console.log(hasIt);