随笔分类 - javascript
摘要：function random(leng: number = 6): string { let s = Math.random().toString(36).substring(2, leng + 2) if (s.length < leng) return s + random(leng - s.
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摘要：function deepCopy2<T extends object>(object: T) { return new Promise<T>((resolve) => { const {port1, port2} = new MessageChannel(); port1.postMessage(
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摘要：function copyText(txt: string) { return new Promise((resolve, reject) => { const domCopy = function () { const input = document.createElement('input')
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摘要：function formatPrice(val: string | number, precision: number = 2) { if (typeof val 'string') { let num = parseFloat(val) if (isNaN(num) || num.toStrin
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摘要：第一步，写一个html页面 <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>飞机大战</title> <style> body { margin: 0; } canvas { display: block;
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摘要：window.onorientationchange = function () { alert("转动了"); }
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摘要：<html><style id="css"> body{font-family:Verdana;font-size:11px;color:#333;} #win{position:absolute;left:100px;top:100px;width:200px;height:150px;border:1px solid #000;} .title{width:100%;background:#000;height:18px;color:#fff;cursor:hand;} </style> <script> var x0=0
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摘要：function_getSelectedText(){if(window.getSelection){varsel=window.getSelection();if(sel.rangeCount>0){varrange=sel.getRangeAt(0);returnrange;}}else{varrange=document.selection.createRange();returnrange.text;}}return"";}
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摘要：<!DOCTYPEhtmlPUBLIC"-//W3C//DTDXHTML1.0Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><htmlxmlns="http://www.w3.org/1999/xhtml"><head><title></title><style>/*让position:fixed在IE6下可用!*/.fixed-top/*头部固定*/{posi
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