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Is it possible to check if (condition) onclick of an event of a button? Because I need to check two functions which are in separate .js files. Also, both the functions should return true to continue forward.

Example:

<input type="button" name="saveButton" onclick="" value="Save" />

Two functions are validateSelect() in one .js file and validateSave() in 
another .js file.

validateSave() will only be called if validateSelect() returns true. So can we check onclick event of button?

Is it possible to check if (condition) onclick of an event of a button? Because I need to check two functions which are in separate .js files. Also, both the functions should return true to continue forward.

Example:

<input type="button" name="saveButton" onclick="" value="Save" />

Two functions are validateSelect() in one .js file and validateSave() in 
another .js file.

validateSave() will only be called if validateSelect() returns true. So can we check onclick event of button?

• javascript

Share Improve this question Follow edited Apr 5, 2012 at 6:21 Anuj Balan 7,7292323 gold badges6161 silver badges9494 bronze badges asked Apr 4, 2012 at 6:02 NitishNitish 85644 gold badges1616 silver badges2727 bronze badges

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3 Answers 3

Sorted by: Reset to default 3

From my understanding of your question,

<input type="button" name="saveButton" onclick="Save();" value="Save" />

function Save(){
if(validateSelect())
{
    validateSave();
}
return false;
}

hope this helps

<input type="button" name="saveButton" onclick="if(validateSelect()&&validateSave()){doSomething();}" value="Save" />

It doesn't matter if the functions are in different JS files (as long as both files are included).

You can say

if (validateSelect() &&validateSave()) {
    /* do something */
}

With the && operator the right-hand operand will not get evaluated if the left-hand operand is false, so validateSave() will only be called if validateSelect() returns true.

You can put the above all on one line if you want to put it directly in your inline onclick.

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