Is there any alternative method for isTextSelected() in jquery or javascript.?

Question

Is there any alternative method for the following code in jquery or javascript.?

function isTextSelected(input) {
  if (typeof input.selectionStart == "number") {
    return input.selectionStart == 0 && input.selectionEnd == input.value.length;
  } else if (typeof document.selection != "undefined") {
    input.focus();
    return document.selection.createRange().text == input.value;
  }
}

<input id="text_selected" type="text" value="Select Text" />
<input onmousedown="console.log(isTextSelected(document.getElementById('text_selected')));" type="button" value="Selected or Not" />

isTextSelected(id) returns boolean value, if text is selected in textbox. [link]http://www.scratchinginfo.net/how-to-find-out-if-the-text-in-a-textbox-is-selected-with-jquery/ — Abhii, Oct 23 '15 at 13:01
I am trying to pass Id as an argument, but its coming as null, the project is very old in vb.net and I have to make it work in IE6 — Abhii, Oct 23 '15 at 13:19
So change to `function isTextSelected(ID) { var input = document.getElementById(ID); ...` — mplungjan, Oct 23 '15 at 13:22
If you just need to see if it is empty or changed: `var field = document.getElementById('text_selected'); if (field.value=="" || field.value==field.defaultValue) alert("empty or not changed"); ` — mplungjan, Oct 23 '15 at 13:24

score 1 · Answer 1 · edited May 23 '17 at 12:23

1

I'm unsure where you get the isTextSelected() method but perhaps you should look into Window.getSelection(): https://developer.mozilla.org/en-US/docs/Web/API/Window/getSelection

Perhaps this will help too: How to get selected html text with javascript?

edited May 23 '17 at 12:23

Community

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answered Oct 23 '15 at 12:57

Mike Sav

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[link]http://www.scratchinginfo.net/how-to-find-out-if-the-text-in-a-textbox-is-selected-with-jquery/ – Abhii Oct 23 '15 at 13:03
So it's just a function, can't you refactor or just use this? – Mike Sav Oct 23 '15 at 13:04
FYI: Perhaps this helps: http://stackoverflow.com/questions/9065828/javascript-check-if-text-selected – Mike Sav Oct 23 '15 at 13:06

mplungjan · Accepted Answer · 2015-10-23T13:56:25.423

1

If you just need to see if it is empty or changed:

var field = document.getElementById('text_selected'); 
if (field.value=="" || field.value==field.defaultValue) {
  alert("empty or not changed");
}

You can add trim:

if (field.value.trim()==""

Or using jQuery:

if ($.trim(field.value)==""

edited Oct 23 '15 at 13:56

answered Oct 23 '15 at 13:33

mplungjan

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score 0 · Answer 3 · answered Oct 23 '15 at 12:56

0

if you mean get selected text from drop down list you can use this :

$("#yourdropdownid option:selected").text();

answered Oct 23 '15 at 12:56

Hasan Daghash

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No, not from dropdown, textbox instead. – Abhii Oct 23 '15 at 12:57
1

so use : $('#textboxid').val() – Hasan Daghash Oct 23 '15 at 12:59
I dont want the value, i just want to check if it is blank or not, or if the value has changed. – Abhii Oct 23 '15 at 13:07
1

if($('#textboxid').val() == ""){//here ur code work when the input is empty} – Hasan Daghash Oct 23 '15 at 13:28

Is there any alternative method for isTextSelected() in jquery or javascript.?

3 Answers3