javascript - jQuery if statement depending on width in px - Stack Overflow

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I'm quite new to jQuery, could someone please tell me if I have expressed the above 'if' statement correctly? I basically want something to run if the width of my variable equals 900px. My variable is var $brewapp = $('#brewapp');

Thanks.

if (($brewapp).width == '900px')
{
//what i want it to do
}

I'm quite new to jQuery, could someone please tell me if I have expressed the above 'if' statement correctly? I basically want something to run if the width of my variable equals 900px. My variable is var $brewapp = $('#brewapp');

Thanks.

if (($brewapp).width == '900px')
{
//what i want it to do
}

• javascript
• jquery
• if-statement
• width

Share Improve this question Follow asked May 26, 2011 at 9:12 LukeLuke 20533 silver badges1616 bronze badges

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3 Answers 3

Sorted by: Reset to default 3

.width is a function, that returns a number. So your test should look like this:

if ($brewapp.width() === 900)

I suggest the Mozilla Javascript docs if you want to deepen your JS knowledge.

You need to add only two characters:

if ($brewapp.width() == 900)
{
//what i want it to do
}

I guess your code should be:

if ($brewapp.width() == 900)
{
//what i want it to do
}

First width is a function, so use () and it returns an integer, so no need to append 'px'.

This is the jQuery way. Using the jQuery width() gives better results than using el.style.width (or what you intended to use).

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