使Javascript正则表达式不区分大小写 [英] Make Javascript regular expression case insensitive

问题描述

我正在使用一个jquery函数，我发现在div中找到单词并突出显示它们。我正在使用它和搜索工具，因此案例并不总是与单词完全匹配。如何将其转换为不区分大小写？

I'm using a jquery function I found to find words in a div and highlight them. I'm using this along with a search tool so the case is not always going to match the words exactly. How can I convert this to make it case insensitive?

$.fn.highlight = function(what,spanClass) {
    return this.each(function(){
        var container = this,
            content = container.innerHTML,
            pattern = new RegExp('(>[^<.]*)(' + what + ')([^<.]*)','g'),
            replaceWith = '$1<span ' + ( spanClass ? 'class="' + spanClass + '"' : '' ) + '">$2</span>$3',
            highlighted = content.replace(pattern,replaceWith);
        container.innerHTML = highlighted;
    });
}

推荐答案

pattern = new RegExp('(>[^<.]*)(' + what + ')([^<.]*)','gi')

添加'i'标志使其不区分大小写

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