53 lines
1.4 KiB
JavaScript
53 lines
1.4 KiB
JavaScript
//格式化时间戳
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export function formatDeadline(timestamp) {
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const date = new Date(timestamp * 1000); // 时间戳以秒为单位，需要乘以1000转换成毫秒
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const year = date.getFullYear();
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const month = ("0" + (date.getMonth() + 1)).slice(-2);
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const day = ("0" + date.getDate()).slice(-2);
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const hours = ("0" + date.getHours()).slice(-2);
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const minutes = ("0" + date.getMinutes()).slice(-2);
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const seconds = ("0" + date.getSeconds()).slice(-2);
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return `${year}年${month}月${day}日 ${hours}:${minutes}:${seconds}`;
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}
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// 防抖函数
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export function debounce(fn, delay) {
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let timer = null;
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return (fnn) => {
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//清除上一次的延时器
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if (timer) {
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clearTimeout(timer);
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// return;
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// console.log(timer);
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}
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//重新设置新的延时器
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timer = setTimeout(() => {
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//修改this指向问题
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// fn.apply(this,value)
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fn(fnn);
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}, delay);
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};
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}
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export function utf8Length(str) {
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let length = 0;
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for (let i = 0; i < str.length; i++) {
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const code = str.charCodeAt(i);
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if (code < 0x80) {
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// 0xxxxxxx
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length += 0.5;
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} else if (code < 0x800) {
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// 110xxxxx 10xxxxxx
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length += 2;
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} else if (code < 0x10000) {
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// 1110xxxx 10xxxxxx 10xxxxxx
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length += 1;
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} else if (code <= 0x10ffff) {
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// 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
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length += 4;
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}
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}
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return length;
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}
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