如何通过jQuery增加/减少某个数字的当前保证金? [英] How to increase/decrease current margin at a number by jquery?

问题描述

给出一个左边距未知的元素，如何增加其左边距为100px?

Given an element with unknown margin-left, how to increase its margin-left at a number say 100px?

例如:

假设原始边距为100px

assuming the original margin-left is 100px

预期结果是100px + 100px，因此最终是200px.

the expected result is 100px + 100px thus 200px finally.

推荐答案

$('#element-id').css('margin-left', function (index, curValue) {
    return parseInt(curValue, 10) + 100 + 'px';
});

curValue的末尾将包含'px'，因此您最终将以NaN或100px100px作为结果，而无需先使用parseInt.

curValue will include 'px' at the end, so you'll end up with NaN or 100px100px as your result without using parseInt first.

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