相关疑难解决方法(0)

有时你的字符串必须符合某个像素宽度.此功能尝试有效地执行此操作.请在下面发布您的建议或重构:)

function fitStringToSize(str,len) {
    var shortStr = str;
    var f = document.createElement("span");
    f.style.display = 'hidden';
    f.style.padding = '0px';
    document.body.appendChild(f);

    // on first run, check if string fits into the length already.
    f.innerHTML = str;
    diff = f.offsetWidth - len;

    // if string is too long, shorten it by the approximate 
    // difference in characters (to make for fewer iterations). 
    while(diff > 0)
    {
        shortStr = substring(str,0,(str.length - Math.ceil(diff / 5))) + '…';
        f.innerHTML = shortStr;
        diff = f.offsetWidth - len; …