preg_match in JavaScript?

问题:

Is it possible in JavaScript to do something like preg_match does in PHP ?

I would like to be able to get two numbers from string:

var text = 'price[5][68]';

into two separated variables:

var productId = 5;
var shopId    = 68;

Edit: I also use MooTools if it would help.

回答1:

JavaScript has a RegExp object which does what you want. The String object has a match() function that will help you out.

var matches = text.match(/price\[(\d+)\]\[(\d+)\]/);

回答2:

var text = 'price[5][68]';
var regex = /price\[(\d+)\]\[(\d+)\]/gi;
match = regex.exec(text);

match[1] and match[2] will contain the numbers you're looking for.

回答3:

var thisRegex = new RegExp('\[(\d+)\]\[(\d+)\]');

if(!thisRegex.test(text)){
    alert('fail');
}

I found test to act more preg_match as it provides a Boolean return. However you do have to declare a RegExp var.

TIP: RegExp adds it's own / at the start and finish, so don't pass them.

回答4:

This should work:

var matches = text.match(/\[(\d+)\][(\d+)\]/);
var productId = matches[1];
var shopId = matches[2];

回答5:

var myregexp = /\[(\d+)\]\[(\d+)\]/;
var match = myregexp.exec(text);
if (match != null) {
    var productId = match[1];
    var shopId = match[2];
} else {
    // no match
}