Remove array items with RegExp?

Question

I have a bunch of links that are used to filter information, see: https://i.sstatic.net/JHxPL.png

When you click on a link, I add it to an array. For example:

Venue>All = venue-0, Venue>Home = venue-1, Venue>Away = venue-2, 
Vs>All = vs-0, Vs>Lefties = vs-1, Vs>Righties = vs-2
 etc, etc, etc.

If the user clicks "All" in any category, I want to search through the array and remove any items that contain that category. For example: myArray['venue-1','venue-2','vs-1']...click Venue>all, remove 'venue-1' and 'venue-2' leaving myArray['vs-1'].

Can I do this using a regular expression like: /^venue/ and changing the word depending on which "All" you click?

I know I need to do a combination of $.inArray or indexOf() and splice() but I can't get it working.

Tejs · Accepted Answer · 2012-05-03 18:45:06Z

1

You can do this simply with the $.grep utility:

var someArray = [1, 2, 3];

var numbersGreaterThanOne = $.grep(someArray, function(item)
{
    return item > 1;
});

This is just a sample, but you can perform whatever callback to filter elements that you like.

answered May 3, 2012 at 18:45

Tejs

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2 Comments

ksumarine Over a year ago

So how would I do this for what I need? I tried var filterIt = $.grep(filters,function(n,i){return n=/^venue/;}); but got nothing.

Tejs Over a year ago

return item.indexOf('venue') == -1 ? The test is up to you.

robrich · Accepted Answer · 2012-05-03 19:00:37Z

0

Try this:

var newList = $.filter(function () {
    return this.indexOf('venue') != 0;
});

answered May 3, 2012 at 19:00

robrich

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Comments

Phrogz · Accepted Answer · 2012-05-03 19:51:12Z

0

For a non-jQuery solution that mutates the array in-place:

for (var i=myArray.length;i--;){
  if (...) myArray.splice(i,1);
}

Where ... is whatever test you want, such as:

if (myRegeEx.test(myArray[i]))

answered May 3, 2012 at 19:51

Phrogz

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