基于pako.js實現(xiàn)gzip的壓縮和解壓功能示例
本文實例講述了基于pako.js實現(xiàn)gzip的壓縮和解壓功能。分享給大家供大家參考,具體如下:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>pako.js實現(xiàn)gzip的壓縮和解壓</title> </head> <body> <script type="text/javascript" src="pako.js"></script> <script > var b64Data = 'H4sIAAAAAAAAAJ3UMQ7CMAwF0KugP2ewEzdpcxXUAbWAOiHUMqCqdyeVQAobfGXIYL8hP5ZXnEdkeNEk6vUgXTbLonC4zMjHFY/5Wm511ekdTsOCLKVp2rlIKOA2jTuBot/cr7BhobEwsbAloY8kDGyqoQ5H/oHsdwQ21cCmaspCz0L2jcYOgLHhNGw4TT1yVmBpuS9PZHWY35siqnxvimEvpE9FY4peQhfbhO0FDnuFqWAEAAA='; var ticketData = '{"ed":"20170121 09:44:01","fs":[{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"003","oids":["1"]},{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"005","oids":["1"]},{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"004","oids":["1"]},{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"007","oids":["1"]},{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"008","oids":["1"]},{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"026","oids":["1"]},{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"033","oids":["1"]},{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"034","oids":["0"]},{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"035","oids":["1"]},{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"037","oids":["1"]},{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"038","oids":["1"]},{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"041","oids":["1"]},{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"042","oids":["1"]},{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"047","oids":["1"]},{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"046","oids":["1"]},{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"048","oids":["1"]},{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"051","oids":["1"]},{"usg":[1,1,1,1,1,1,1],"act":0,"fid":"053","oids":["4"]}],"qty":1,"sd":"20161021 09:44:01","cd":"72016102116762039687"}'; // Output to console var s = unzip(b64Data); console.log("unzipped:"); console.log(s); var data = zip(ticketData); console.log("zipped:"); console.log(data); function unzip(b64Data){ var strData = atob(b64Data); // Convert binary string to character-number array var charData = strData.split('').map(function(x){return x.charCodeAt(0);}); // Turn number array into byte-array var binData = new Uint8Array(charData); // // unzip var data = pako.inflate(binData); // Convert gunzipped byteArray back to ascii string: strData = String.fromCharCode.apply(null, new Uint16Array(data)); return strData; } function zip(str){ var binaryString = pako.gzip(str, { to: 'string' }); return btoa(binaryString); } </script> </body> </html>
運行效果圖如下:
poko.js可至Github下載:https://github.com/nodeca/pako
或者點擊此處本站下載。
更多關(guān)于JavaScript相關(guān)內(nèi)容可查看本站專題:《JavaScript中json操作技巧總結(jié)》、《JavaScript查找算法技巧總結(jié)》、《JavaScript錯誤與調(diào)試技巧總結(jié)》、《JavaScript數(shù)據(jù)結(jié)構(gòu)與算法技巧總結(jié)》、《JavaScript遍歷算法與技巧總結(jié)》及《JavaScript數(shù)學運算用法總結(jié)》
希望本文所述對大家JavaScript程序設計有所幫助。
相關(guān)文章
JavaScript中net::ERR_CONNECTION_REFUSED解決方法大全
在一次測試中遇到了報net::ERR_CONNECTION_REFUSED的錯誤,五哦一下面這篇文章主要給大家介紹了關(guān)于JavaScript中net::ERR_CONNECTION_REFUSED解決方法的相關(guān)資料,需要的朋友可以參考下2022-10-10利用ASP發(fā)送和接收XML數(shù)據(jù)的處理方法與代碼
利用ASP發(fā)送和接收XML數(shù)據(jù)的處理方法與代碼...2007-11-11JavaScript實現(xiàn)Java中StringBuffer的方法
這篇文章主要介紹了JavaScript實現(xiàn)Java中StringBuffer的方法,實例分析了StringBuffer類的實現(xiàn)與使用技巧,需要的朋友可以參考下2015-02-02