Run results for: format string

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36

Browser: Chrome 57

Operating system: Windows 7

Device Platform: Other

Date tested: 7 years ago

Test name	Executions per second
format1	117513.9 Ops/sec
format2	289823.8 Ops/sec

HTML Preparation code:

<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js"></script>

Script Preparation code:

function format1(source, ...args) {
    $.each(args, function(i, n) {
        source = source.replace(new RegExp("\\{" + i + "\\}", "g"), n);
    });

    return source;
}

function format2(source, ...args) {
    return source.replace(/{(\d+)}/g, function(match, i) {
        return args[i] || match;
    });
};

var template = "{0} is dead, but {1} is alive! {0} {2} {1} {3} {4}";

Tests:

format1
format1(template, 'ASP', 'ASP.NET', 'foo', 'bar');
format2
format2(template, 'ASP', 'ASP.NET', 'foo', 'bar');