Info

Different ways to concatenate strings together

Preparation code

<script>
  var arr = ['a', 'b', 'c', 'd']
</script>

Test runner

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var foo = 'a' + 'b' + 'c' + 'd';

var foo = 'a';
foo += 'b';
foo += 'c';
foo += 'd';

var foo = 'a';
foo = foo + 'b';
foo = foo + 'c';
foo = foo + 'd';

var foo = arr.join('');

var foo = '';
foo += 'a' + 'b' + 'c' + 'd';

var foo = "a \
b \
c \
d";

var foo = "1 2 3 4";
foo = foo.replace(/\d/g, function(match) {
 return arr[match];
});

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Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

• Revision 1: published on 1st August 2010
• Revision 2: published on 1st August 2010
• Revision 3: published on 3rd August 2010
• Revision 7: published on 13th October 2010
• Revision 8: published on 14th October 2010
• Revision 10: published on 14th November 2010
• Revision 14: published by Redger on 22nd March 2012

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