javascript - <textarea onclick="this.value; this.select();"> ? What kind of trick is this? -

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working somebody's code, saw this:

<textarea onclick="this.value; this.select();">(some predefined stuff)</textarea>

what kind of trick / hack , supposed do?

the statement

this.value;

will have no effect. following statement:

this.select();

will cause contents of <textarea> selected.


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