Combining multiple string replace into one statement?

Question

This is what I'm doing now:

text = text.replace(/{{contact first}}/gi, contact.first)
    .replace(/{{contact last}}/gi, contact.last)
    .replace(/{{contact name}}/gi, contact.first + ' ' + contact.last);

Is there a way of doing:

text = text.replace([
    /{{contact first}}/gi,
    /{{contact last}}/gi,
    /{{contact name}}/gi
], [
    contact.first,
    contact.last,
    contact.first + ' ' + contact.last
]);

kennebec · Accepted Answer · 2014-01-12 17:08:48Z

4

var contact={first:'John',last:'Doe'}

var text='{{contact first}} blah blah {{contact last}} blah blah blah {{contact name}} blahblah';

text= text.replace(/{{contact (first|last|name)}}/gi, function(a, b){   
    return contact[b]|| contact.first+' '+contact.last;
});

text;

/*  returned value: (String)
John blah blah Doe blah blah blah John Doe blahblah
*/

answered Jan 12, 2014 at 17:08

kennebec

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1 Comment

Michael J. Calkins Over a year ago

Nice I dropped this right in and it shortened my code quite a bit. Chrome 31.0.1650 (Mac OS X 10.9.1): Executed 41 of 41 SUCCESS (0.575 secs / 0.021 secs)

anubhava · Accepted Answer · 2014-01-12 16:53:55Z

3

That is not supported in Javascript but you can probably use String#replace like this:

text = text.replace(/{{contact (first|last|name)}}/gi, function($0, $1) {
    if ($1 == "last") 
       return contact.last;
    else
       return contact.first;
});

answered Jan 12, 2014 at 16:53

anubhava

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