字符串对比，差异高亮

引用文件

<script src="https://cdnjs.cloudflare.com/ajax/libs/jsdiff/5.1.0/diff.min.js"></script>

JavaScript

//字符对比
function diffChars(string1, string2) {
    let color = '';
    let all = '';
    let diff1 = '';
    let diff2 = '';
    let diff = Diff.diffChars(string1, string2);
    diff.forEach(function (part) {
        color = part.added ? 'green' : (part.removed ? 'red' : 'grey');
        all += '<span style="color: ' + color + ';">' + part.value + '</span>';
        if (color !== 'green') {
            diff1 += '<span style="color: ' + color + ';">' + part.value + '</span>';
        }
        if (color !== 'red') {
            diff2 += '<span style="color: ' + color + ';">' + part.value + '</span>';
        }
    });
    return { diff1: diff1, diff2: diff2, all: all };
}
let result = diffChars('敏感词：今早上我去了同学他妈妈那里告密，回家我被揍得找不到北','敏感词：今早上我去了同学**妈那里告密，回家我**得找不到北');
console.log(result);