var textRange = document.body.createTextRange();
textRange.collapse(true);
if( textRange.findText(tex)) {
textRange.execCommand("BackColor", false, "yellow");
}
以上代码非常适合搜索文本并在IE中突出显示,但我想做一些修改来计算出现次数。如下所示
textRange.findText(tex).WhichMethod() Should i use to return me count of occurrences.
答案 0 :(得分:0)
如果您只想计算特定模式的实例数,那么以下内容应该适合:
function countString(s) {
var re = new RegExp(s, 'gi');
var b = document.body;
// Make an assumption about support for textContent and inerText
var text = typeof b.textContent == 'string'? b.textContent : b.innerText;
var matches = text.replace(/\s+/g, ' ').match(re);
return matches? matches.length : 0;
}