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July 8, 2019 06:48
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Get nearest word of the cursor position in textbox
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<!DOCTYPE html> | |
<html lang="en"> | |
<head> | |
<title>Get Nearest word of cursor</title> | |
</head> | |
<body> | |
<input id="textArea" type="text"/> | |
<br /> | |
<input id="Submit" type="submit" value="Test" onclick="getPreviousWordOfCursor()"/> | |
<script> | |
function getPreviousWordOfCursor() { | |
var textElement = document.getElementById('textArea') | |
let caretPos = 0 | |
if (document.selection) { | |
textElement.focus() | |
let Sel = document.selection.createRange() | |
Sel.moveStart('character', -textElement.value.length) | |
caretPos = Sel.text.length | |
} else if (textElement.selectionStart || textElement.selectionStart == '0') { | |
caretPos = textElement.selectionStart | |
} | |
let text = textElement.value | |
let preText = text.substring(0, caretPos) | |
let resultWord | |
if (preText.indexOf(" ") > 0) { | |
let words = preText.split(" ") | |
resultWord = words[words.length - 1] | |
} | |
else { | |
resultWord = preText | |
} | |
alert(resultWord) | |
} | |
</script> | |
</body> | |
</html> |
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