如果你想让它在你当前所在的帧上居中，我推荐这个功能:

function popupwindow(url, title, w, h) {
    var y = window.outerHeight / 2 + window.screenY - ( h / 2)
    var x = window.outerWidth / 2 + window.screenX - ( w / 2)
    return window.open(url, title, 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, copyhistory=no, width=' + w + ', height=' + h + ', top=' + y + ', left=' + x);
} 

类似于疯狂蒂姆的答案，但没有使用window.top。这样，即使窗口嵌入在来自不同域的iframe中，它也能工作。

.center { 左:50%; max-width: 350 px; 填充:15 px; text-align:中心; 位置:相对; 变换:translateX (-50%); -moz-transform: translateX (-50%); -webkit-transform: translateX (-50%); -ms-transform: translateX (-50%); -o-transform: translateX (-50%); ｝

下面是上述解决方案的另一个版本……

const openPopupCenter = (url, title, w, h) => {
  const getSpecs = (w, h, top, left) => {
    return `scrollbars=yes, width=${w}, height=${h}, top=${top}, left=${left}`;
  };

  const getFirstNumber = (potentialNumbers) => {
    for(let i = 0; i < potentialNumbers.length; i++) {
      const value = potentialNumbers[i];

      if (typeof value === 'number') {
        return value;
      }
    }
  };

  // Fixes dual-screen position
  // Most browsers use window.screenLeft
  // Firefox uses screen.left
  const dualScreenLeft = getFirstNumber([window.screenLeft, screen.left]);
  const dualScreenTop = getFirstNumber([window.screenTop, screen.top]);
  const width = getFirstNumber([window.innerWidth, document.documentElement.clientWidth, screen.width]);
  const height = getFirstNumber([window.innerHeight, document.documentElement.clientHeight, screen.height]);
  const left = ((width / 2) - (w / 2)) + dualScreenLeft;
  const top = ((height / 2) - (h / 2)) + dualScreenTop;
  const newWindow = window.open(url, title, getSpecs(w, h, top, left));

  // Puts focus on the newWindow
  if (window.focus) {
    newWindow.focus();
  }

  return newWindow;
}

公认的解决方案是无法工作的，除非浏览器占据全屏，

这似乎总是有效的

  const popupCenterScreen = (url, title, w, h, focus) => {
    const top = (screen.height - h) / 4, left = (screen.width - w) / 2;
    const popup = window.open(url, title, `scrollbars=yes,width=${w},height=${h},top=${top},left=${left}`);
    if (focus === true && window.focus) popup.focus();
    return popup;
  }

Impl:

some.function.call({data: ''})
    .then(result =>
     popupCenterScreen(
         result.data.url,
         result.data.title, 
         result.data.width, 
         result.data.height, 
         true));

你可以使用css来做到这一点，只要给元素下面的属性被放置在弹出窗口的中心

element{

position:fixed;
left: 50%;
top: 50%;
-ms-transform: translate(-50%,-50%);
-moz-transform:translate(-50%,-50%);
-webkit-transform: translate(-50%,-50%);
 transform: translate(-50%,-50%);

}

(这是在2020年发布的)

这是CrazyTim回答的延伸

还可以将宽度设置为动态大小的百分比(或比率)。 绝对尺寸仍然被接受。

function popupWindow(url, title, w='75%', h='16:9', opts){
    // sort options
    let options = [];
    if(typeof opts === 'object'){
        Object.keys(opts).forEach(function(value, key){
            if(value === true){value = 'yes';}else if(value === false){value = 'no';}
            options.push(`${key}=${value}`);
        });
        if(options.length){options = ','+options.join(',');}
        else{options = '';}
    }else if(Array.isArray(opts)){
        options = ','+opts.join(',');
    }else if(typeof opts === 'string'){
        options = ','+opts;
    }else{options = '';}

    // add most vars to local object (to shorten names)
    let size = {w: w, h: h};
    let win = {w: {i: window.top.innerWidth, o: window.top.outerWidth}, h: {i: window.top.innerHeight, o: window.top.outerHeight}, x: window.top.screenX || window.top.screenLeft, y: window.top.screenY || window.top.screenTop}

    // set window size if percent
    if(typeof size.w === 'string' && size.w.endsWith('%')){size.w = Number(size.w.replace(/%$/, ''))*win.w.o/100;}
    if(typeof size.h === 'string' && size.h.endsWith('%')){size.h = Number(size.h.replace(/%$/, ''))*win.h.o/100;}

    // set window size if ratio
    if(typeof size.w === 'string' && size.w.includes(':')){
        size.w = size.w.split(':', 2);
        if(win.w.o < win.h.o){
            // if height is bigger than width, reverse ratio
            size.w = Number(size.h)*Number(size.w[1])/Number(size.w[0]);
        }else{size.w = Number(size.h)*Number(size.w[0])/Number(size.w[1]);}
    }
    if(typeof size.h === 'string' && size.h.includes(':')){
        size.h = size.h.split(':', 2);
        if(win.w.o < win.h.o){
            // if height is bigger than width, reverse ratio
            size.h = Number(size.w)*Number(size.h[0])/Number(size.h[1]);
        }else{size.h = Number(size.w)*Number(size.h[1])/Number(size.h[0]);}
    }

    // force window size to type number
    if(typeof size.w === 'string'){size.w = Number(size.w);}
    if(typeof size.h === 'string'){size.h = Number(size.h);}

    // keep popup window within padding of window size
    if(size.w > win.w.i-50){size.w = win.w.i-50;}
    if(size.h > win.h.i-50){size.h = win.h.i-50;}

    // do math
    const x = win.w.o / 2 + win.x - (size.w / 2);
    const y = win.h.o / 2 + win.y - (size.h / 2);
    return window.open(url, title, `width=${size.w},height=${size.h},left=${x},top=${y}${options}`);
}

用法:

// width and height are optional (defaults: width = '75%' height = '16:9')
popupWindow('https://www.google.com', 'Title', '75%', '16:9', {/* options (optional) */});

// options can be an object, array, or string

// example: object (only in object, true/false get replaced with 'yes'/'no')
const options = {scrollbars: false, resizable: true};

// example: array
const options = ['scrollbars=no', 'resizable=yes'];

// example: string (same as window.open() string)
const options = 'scrollbars=no,resizable=yes';