Can someone please make me understand what is "this" keyword and its uses in JavaScript? -

Can someone please make me understand what is "this" keyword and its uses in JavaScript? -

i have tried best resources, can't understand single thing. "this" confusing, how connect other variables outside. have tried source, understands source not me. can explain superb examples. totally begineer in javascript.

this best source say.. how "this" keyword work within javascript object literal?

please help me understand "this". tired of searching on net , books.

definition of javascript keyword ? object called function.

for example, have element button. has value click me. when click on button phone call javascript function dosomething();

<input type="button" value="clickme" onclick="dosomething(this)"/> function dosomething(ele) { // want do, alter text of button. // point @ button utilize ele, passed in. ele.value = "changed"; // buttons text changing word changed }

hope helps.

javascript this