csl125的博客

1000000级别数组 some()查找速度比incudes()慢 let arrs = [] for (let i = 0; i < 1000000; i++) { arrs.push(i) } var start = new Date().getTime(); // roles.includes("999999") // arrs.some(role => role == "999999") // arrs.in

限制只能输入大于等于0的正整数 onkeyup="value=(value.replace(/\D/g,'')==''?'':parseInt(value))"限制输入正整数（不包括0）onkeyup="value=value.replace(/^(0+)|[^\d]+/g,'')"限制输入大于等于0的两位小数oninput="value= value.match(/\d...