JS选中网页(DOM)元素(类似于Ctrl+A)

实例方法

function selectAll(id = '.w-e-text') {
    var h = document, i = h.querySelector(id), d, g;
    if (h.body.createTextRange) {
        d = document.body.createTextRange();
        d.moveToElementText(i);
        d.select()
    } else {
        if (window.getSelection) {
            g = window.getSelection();
            d = document.createRange();
            d.selectNodeContents(i);
            g.removeAllRanges();
            g.addRange(d)
        }
    }
}