Javascript RegEx contains

Question

I'm using Javascript RegEx to compare if a string matches a standart format.

I have this variable called inputName, which has the following format (sample):

input[name='data[product][tool_team]']

And what I want to achieve with Javascript's regex is to determine if the string has the following but contains _team in between those brackets.

I tried the following:

var inputName = "input[name='data[product][tool_team]']";
var teamPattern = /\input[name='data[product][[_team]]']/g;
var matches = inputName.match(teamPattern);
console.log(matches);

I just get null with the result I gave as an example. To be honest, RegEx isn't really my area, so I suppose it's wrong.

You need to escape [ and ]

gurvinder372
– gurvinder372

2018-01-11 09:09:49 +00:00
Commented Jan 11, 2018 at 9:09 — gurvinder372
– gurvinder372, Commented Jan 11, 2018 at 9:09
Where is the string derived from?

guest271314
– guest271314

2018-01-11 09:10:19 +00:00
Commented Jan 11, 2018 at 9:10 — guest271314
– guest271314, Commented Jan 11, 2018 at 9:10
@guest271314 I've edited the main post.

James
– James

2018-01-11 09:13:04 +00:00
Commented Jan 11, 2018 at 9:13 — James
– James, Commented Jan 11, 2018 at 9:13

T.J. Crowder · Accepted Answer · 2018-01-11 09:13:03Z

3

A couple of things:

You need to escape [ and ] as they have special meaning in regex
You need .* (or perhaps [^[]*) in front of _team if you want to allow anything there ([^[]* means "anything but a [ repeated zero or more times)

Example if you just want to know if it matches:

var string = "input[name='data[product][tool_team]']";

var teamPattern = /input\[name='data\[product\]\[[^[]*_team\]'\]/;
console.log(teamPattern.test(string));

Example if you need to capture the xyz_team bit:

var string = "input[name='data[product][tool_team]']";

var teamPattern = /input\[name='data\[product\]\[([^[]*_team)\]'\]/;
var match = string.match(teamPattern);
console.log(match ? match[1] : "no match");

answered Jan 11, 2018 at 9:13

T.J. Crowder

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Comments

guest271314 · Accepted Answer · 2018-01-11 09:16:16Z

0

If you are trying to check for DOM elements you can use attribute contains or attribute equals selector

document.querySelectorAll("input[name*='[_team]']")

answered Jan 11, 2018 at 9:16

guest271314

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