Question

well i am still new to js/programming.
can anyhow guide me on how can i optimize my code?
i am sure that there are multiple ways to write a small and fast code that does the same thing.

$('.ourservices-content .left ul li:nth-child(1)').click(function(){
        $('.our-services-content-box > ul.box').stop().animate({
            marginLeft: '0px'
        },800)
    })

    $('.ourservices-content .left ul li:nth-child(2)').click(function(){
        $('.our-services-content-box > ul.box').stop().animate({
            marginLeft: '-600px'
        },800)
    })

    $('.ourservices-content .left ul li:nth-child(3)').click(function(){
        $('.our-services-content-box > ul.box').stop().animate({
            marginLeft: '-1200px'
        },800)
    })

    $('.ourservices-content .left ul li:nth-child(4)').click(function(){
        $('.our-services-content-box > ul.box').stop().animate({
            marginLeft: '-1800px'
        },800)
    })

    $('.ourservices-content .left ul li:nth-child(5)').click(function(){
        $('.our-services-content-box > ul.box').stop().animate({
            marginLeft: '-2400px'
        },800)
    })

    $('.ourservices-content .left ul li:nth-child(6)').click(function(){
        $('.our-services-content-box > ul.box').stop().animate({
            marginLeft: '-3000px'
        },800)
    })

    $('.ourservices-content .left ul li:nth-child(7)').click(function(){
        $('.our-services-content-box > ul.box').stop().animate({
            marginLeft: '-3600px'
        },800)
    })

Answer 1

This should do it:

$('.ourservices-content .left ul li').each(function (index) {
    $(this).click(function () {
        $('.our-services-content-box > ul.box').stop().animate({
            marginLeft: '-' + (600 * index) + 'px';
        }, 800);
    });
});

What we’re doing is looping through each element matched by the selector in the original $() call. Then, for each element matched, we’re adjusting the animation param, marginLeft, by which element index we’re at, starting with the zeroth element.