如何在文本区域的光标开始和结束之间获取文本

Question

how to get text in between cursor start and end of textarea in html page.

Can someone help me please, i have searched for this but i didnt find any related answers.

any functions like cursor start and cursor end.

can the following could be used

var selection = rangy.getSelection(),  // Whole lot of information, supports
                                       // multi-selections too.
    start   = selection.anchorOffset,  // Start position
    end     = selection.focusOffset;   // End position

Answer 1

Demo

<textarea cols="50" rows="10" id="tarea"></textarea>
<button id="btn">get text</button>

$('#btn').on('click',function(){
    cursor = $('#tarea').prop("selectionStart");
    area = $('#tarea');
    console.log(area.val().substring(cursor,area.val().length));
});