1、base64加密

在页面中引入base64.js文件，调用方法为：

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>base64加密</title>
<script type="text/javascript" src="base64.js"></script>
<script type="text/javascript">
  var b = new Base64();
  var str = b.encode("admin:admin");
  alert("base64 encode:" + str);
//解密
  str = b.decode(str);
  alert("base64 decode:" + str);
</script>
</head>
<body>
</body>
</html>
 

2、md5加密

在页面中引用md5.js文件，调用方法为：

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>md5加密</title>
<script type="text/ecmascript" src="md5.js"></script>
<script type="text/javascript">
 var hash = hex_md5("123dafd");
 alert(hash)
</script>
</head>
<body>
</body>
</html>
 

3、sha1加密

据说这是最安全的加密

页面中引入sha1.js，调用方法为：

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>sha1加密</title>
<script type="text/ecmascript" src="sha1.js"></script>
<script type="text/javascript">
 var sha = hex_sha1('mima123465')
 alert(sha)
</script>
</head>
<body>
</body>
</html>
 
base64.js的源码：
/**
*
* Base64 encode / decode
*
* @author haitao.tu
* @date 2010-04-26
* @email tuhaitao@foxmail.com
*
*/
function Base64() {
 // private property
 _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
 // public method for encoding
 this.encode = function (input) {
  var output = "";
  var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
  var i = 0;
  input = _utf8_encode(input);
  while (i < input.length) {
   chr1 = input.charCodeAt(i++);
   chr2 = input.charCodeAt(i++);
   chr3 = input.charCodeAt(i++);
   enc1 = chr1 >> 2;
   enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
   enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
   enc4 = chr3 & 63;
   if (isNaN(chr2)) {
    enc3 = enc4 = 64;
   } else if (isNaN(chr3)) {
    enc4 = 64;
   }
   output = output +
   _keyStr.charAt(enc1) + _keyStr.charAt(enc2) +
   _keyStr.charAt(enc3) + _keyStr.charAt(enc4);
  }
  return output;
 }
 // public method for decoding
 this.decode = function (input) {
  var output = "";
  var chr1, chr2, chr3;
  var enc1, enc2, enc3, enc4;
  var i = 0;
  input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
  while (i < input.length) {
   enc1 = _keyStr.indexOf(input.charAt(i++));
   enc2 = _keyStr.indexOf(input.charAt(i++));
   enc3 = _keyStr.indexOf(input.charAt(i++));
   enc4 = _keyStr.indexOf(input.charAt(i++));
   chr1 = (enc1 << 2) | (enc2 >> 4);
   chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
   chr3 = ((enc3 & 3) << 6) | enc4;
   output = output + String.fromCharCode(chr1);
   if (enc3 != 64) {
    output = output + String.fromCharCode(chr2);
   }
   if (enc4 != 64) {
    output = output + String.fromCharCode(chr3);
   }
  }
  output = _utf8_decode(output);
  return output;
 }
 // private method for UTF-8 encoding
 _utf8_encode = function (string) {
  string = string.replace(/\r\n/g,"\n");
  var utftext = "";
  for (var n = 0; n < string.length; n++) {
   var c = string.charCodeAt(n);
   if (c < 128) {
    utftext += String.fromCharCode(c);
   } else if((c > 127) && (c < 2048)) {
    utftext += String.fromCharCode((c >> 6) | 192);
    utftext += String.fromCharCode((c & 63) | 128);
   } else {
    utftext += String.fromCharCode((c >> 12) | 224);
    utftext += String.fromCharCode(((c >> 6) & 63) | 128);
    utftext += String.fromCharCode((c & 63) | 128);
   }
  }
  return utftext;
 }
 // private method for UTF-8 decoding
 _utf8_decode = function (utftext) {
  var string = "";
  var i = 0;
  var c = c1 = c2 = 0;
  while ( i < utftext.length ) {
   c = utftext.charCodeAt(i);
   if (c < 128) {
    string += String.fromCharCode(c);
    i++;
   } else if((c > 191) && (c < 224)) {
    c2 = utftext.charCodeAt(i+1);
    string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
    i += 2;
   } else {
    c2 = utftext.charCodeAt(i+1);
    c3 = utftext.charCodeAt(i+2);
    string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
    i += 3;
   }
  }
  return string;
 }
}
 
MD5.js的源码：
/*
 * A Javascript implementation of the RSA Data Security, Inc. MD5 Message
 * Digest Algorithm, as defined in RFC 1321.
 * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 * Distributed under the BSD License
 * See http://pajhome.org.uk/crypt/md5 for more info.
 */
/*
 * Configurable variables. You may need to tweak these to be compatible with
 * the server-side, but the defaults work in most cases.
 */
var hexcase = 0; /* hex output format. 0 - lowercase; 1 - uppercase  */
var b64pad = ""; /* base-64 pad character. "=" for strict RFC compliance */
var chrsz = 8; /* bits per input character. 8 - ASCII; 16 - Unicode  */
/*
 * These are the functions you'll usually want to call
 * They take string arguments and return either hex or base-64 encoded strings
 */
function hex_md5(s){ return binl2hex(core_md5(str2binl(s), s.length * chrsz));}
function b64_md5(s){ return binl2b64(core_md5(str2binl(s), s.length * chrsz));}
function str_md5(s){ return binl2str(core_md5(str2binl(s), s.length * chrsz));}
function hex_hmac_md5(key, data) { return binl2hex(core_hmac_md5(key, data)); }
function b64_hmac_md5(key, data) { return binl2b64(core_hmac_md5(key, data)); }
function str_hmac_md5(key, data) { return binl2str(core_hmac_md5(key, data)); }
/*
 * Perform a simple self-test to see if the VM is working
 */
function md5_vm_test()
{
 return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72";
}
/*
 * Calculate the MD5 of an array of little-endian words, and a bit length
 */
function core_md5(x, len)
{
 /* append padding */
 x[len >> 5] |= 0x80 << ((len) % 32);
 x[(((len + 64) >>> 9) << 4) + 14] = len;
 var a = 1732584193;
 var b = -271733879;
 var c = -1732584194;
 var d = 271733878;
 for(var i = 0; i < x.length; i += 16)
 {
 var olda = a;
 var oldb = b;
 var oldc = c;
 var oldd = d;
 a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
 d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
 c = md5_ff(c, d, a, b, x[i+ 2], 17, 606105819);
 b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
 a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
 d = md5_ff(d, a, b, c, x[i+ 5], 12, 1200080426);
 c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
 b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
 a = md5_ff(a, b, c, d, x[i+ 8], 7 , 1770035416);
 d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
 c = md5_ff(c, d, a, b, x[i+10], 17, -42063);
 b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
 a = md5_ff(a, b, c, d, x[i+12], 7 , 1804603682);
 d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);
 c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
 b = md5_ff(b, c, d, a, x[i+15], 22, 1236535329);
 a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
 d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
 c = md5_gg(c, d, a, b, x[i+11], 14, 643717713);
 b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
 a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
 d = md5_gg(d, a, b, c, x[i+10], 9 , 38016083);
 c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);
 b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
 a = md5_gg(a, b, c, d, x[i+ 9], 5 , 568446438);
 d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
 c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
 b = md5_gg(b, c, d, a, x[i+ 8], 20, 1163531501);
 a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
 d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
 c = md5_gg(c, d, a, b, x[i+ 7], 14, 1735328473);
 b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);
 a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
 d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
 c = md5_hh(c, d, a, b, x[i+11], 16, 1839030562);
 b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);
 a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
 d = md5_hh(d, a, b, c, x[i+ 4], 11, 1272893353);
 c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
 b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
 a = md5_hh(a, b, c, d, x[i+13], 4 , 681279174);
 d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
 c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
 b = md5_hh(b, c, d, a, x[i+ 6], 23, 76029189);
 a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
 d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);
 c = md5_hh(c, d, a, b, x[i+15], 16, 530742520);
 b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);
 a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
 d = md5_ii(d, a, b, c, x[i+ 7], 10, 1126891415);
 c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
 b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
 a = md5_ii(a, b, c, d, x[i+12], 6 , 1700485571);
 d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
 c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);
 b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
 a = md5_ii(a, b, c, d, x[i+ 8], 6 , 1873313359);
 d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);
 c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
 b = md5_ii(b, c, d, a, x[i+13], 21, 1309151649);
 a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
 d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
 c = md5_ii(c, d, a, b, x[i+ 2], 15, 718787259);
 b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);
 a = safe_add(a, olda);
 b = safe_add(b, oldb);
 c = safe_add(c, oldc);
 d = safe_add(d, oldd);
 }
 return Array(a, b, c, d);
}
/*
 * These functions implement the four basic operations the algorithm uses.
 */
function md5_cmn(q, a, b, x, s, t)
{
 return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);
}
function md5_ff(a, b, c, d, x, s, t)
{
 return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
}
function md5_gg(a, b, c, d, x, s, t)
{
 return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
}
function md5_hh(a, b, c, d, x, s, t)
{
 return md5_cmn(b ^ c ^ d, a, b, x, s, t);
}
function md5_ii(a, b, c, d, x, s, t)
{
 return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
}
/*
 * Calculate the HMAC-MD5, of a key and some data
 */
function core_hmac_md5(key, data)
{
 var bkey = str2binl(key);
 if(bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz);
 var ipad = Array(16), opad = Array(16);
 for(var i = 0; i < 16; i++)
 {
 ipad[i] = bkey[i] ^ 0x36363636;
 opad[i] = bkey[i] ^ 0x5C5C5C5C;
 }
 var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz);
 return core_md5(opad.concat(hash), 512 + 128);
}
/*
 * Add integers, wrapping at 2^32. This uses 16-bit operations internally
 * to work around bugs in some JS interpreters.
 */
function safe_add(x, y)
{
 var lsw = (x & 0xFFFF) + (y & 0xFFFF);
 var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
 return (msw << 16) | (lsw & 0xFFFF);
}
/*
 * Bitwise rotate a 32-bit number to the left.
 */
function bit_rol(num, cnt)
{
 return (num << cnt) | (num >>> (32 - cnt));
}
/*
 * Convert a string to an array of little-endian words
 * If chrsz is ASCII, characters >255 have their hi-byte silently ignored.
 */
function str2binl(str)
{
 var bin = Array();
 var mask = (1 << chrsz) - 1;
 for(var i = 0; i < str.length * chrsz; i += chrsz)
 bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (i%32);
 return bin;
}
/*
 * Convert an array of little-endian words to a string
 */
function binl2str(bin)
{
 var str = "";
 var mask = (1 << chrsz) - 1;
 for(var i = 0; i < bin.length * 32; i += chrsz)
 str += String.fromCharCode((bin[i>>5] >>> (i % 32)) & mask);
 return str;
}
/*
 * Convert an array of little-endian words to a hex string.
 */
function binl2hex(binarray)
{
 var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
 var str = "";
 for(var i = 0; i < binarray.length * 4; i++)
 {
 str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) +
   hex_tab.charAt((binarray[i>>2] >> ((i%4)*8 )) & 0xF);
 }
 return str;
}
/*
 * Convert an array of little-endian words to a base-64 string
 */
function binl2b64(binarray)
{
 var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 var str = "";
 for(var i = 0; i < binarray.length * 4; i += 3)
 {
 var triplet = (((binarray[i >> 2] >> 8 * ( i %4)) & 0xFF) << 16)
    | (((binarray[i+1 >> 2] >> 8 * ((i+1)%4)) & 0xFF) << 8 )
    | ((binarray[i+2 >> 2] >> 8 * ((i+2)%4)) & 0xFF);
 for(var j = 0; j < 4; j++)
 {
  if(i * 8 + j * 6 > binarray.length * 32) str += b64pad;
  else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F);
 }
 }
 return str;
}
 
sha1.js：
/*
 * A Javascript implementation of the Secure Hash Algorithm, SHA-1, as defined
 * in FIPS PUB 180-1
 * Version 2.1-BETA Copyright Paul Johnston 2000 - 2002.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 * Distributed under the BSD License
 * See http://pajhome.org.uk/crypt/md5 for details.
 */
/*
 * Configurable variables. You may need to tweak these to be compatible with
 * the server-side, but the defaults work in most cases.
 */
var hexcase = 0; /* hex output format. 0 - lowercase; 1 - uppercase     */
var b64pad = ""; /* base-64 pad character. "=" for strict RFC compliance  */
var chrsz = 8; /* bits per input character. 8 - ASCII; 16 - Unicode    */
/*
 * These are the functions you'll usually want to call
 * They take string arguments and return either hex or base-64 encoded strings
 */
function hex_sha1(s) {
 return binb2hex(core_sha1(str2binb(s), s.length * chrsz));
}
function b64_sha1(s) {
 return binb2b64(core_sha1(str2binb(s), s.length * chrsz));
}
function str_sha1(s) {
 return binb2str(core_sha1(str2binb(s), s.length * chrsz));
}
function hex_hmac_sha1(key, data) {
 return binb2hex(core_hmac_sha1(key, data));
}
function b64_hmac_sha1(key, data) {
 return binb2b64(core_hmac_sha1(key, data));
}
function str_hmac_sha1(key, data) {
 return binb2str(core_hmac_sha1(key, data));
}
/*
 * Perform a simple self-test to see if the VM is working
 */
function sha1_vm_test() {
 return hex_sha1("abc") == "a9993e364706816aba3e25717850c26c9cd0d89d";
}
/*
 * Calculate the SHA-1 of an array of big-endian words, and a bit length
 */
function core_sha1(x, len) {
 /* append padding */
 x[len >> 5] |= 0x80 << (24 - len % 32);
 x[((len + 64 >> 9) << 4) + 15] = len;
 var w = Array(80);
 var a = 1732584193;
 var b = -271733879;
 var c = -1732584194;
 var d = 271733878;
 var e = -1009589776;
 for (var i = 0; i < x.length; i += 16) {
  var olda = a;
  var oldb = b;
  var oldc = c;
  var oldd = d;
  var olde = e;
  for (var j = 0; j < 80; j++) {
   if (j < 16) w[j] = x[i + j];
   else w[j] = rol(w[j - 3] ^ w[j - 8] ^ w[j - 14] ^ w[j - 16], 1);
   var t = safe_add(safe_add(rol(a, 5), sha1_ft(j, b, c, d)), safe_add(safe_add(e, w[j]), sha1_kt(j)));
   e = d;
   d = c;
   c = rol(b, 30);
   b = a;
   a = t;
  }
  a = safe_add(a, olda);
  b = safe_add(b, oldb);
  c = safe_add(c, oldc);
  d = safe_add(d, oldd);
  e = safe_add(e, olde);
 }
 return Array(a, b, c, d, e);
}
/*
 * Perform the appropriate triplet combination function for the current
 * iteration
 */
function sha1_ft(t, b, c, d) {
 if (t < 20) return (b & c) | ((~b) & d);
 if (t < 40) return b ^ c ^ d;
 if (t < 60) return (b & c) | (b & d) | (c & d);
 return b ^ c ^ d;
}
/*
 * Determine the appropriate additive constant for the current iteration
 */
function sha1_kt(t) {
 return (t < 20) ? 1518500249 : (t < 40) ? 1859775393 : (t < 60) ? -1894007588 : -899497514;
}
/*
 * Calculate the HMAC-SHA1 of a key and some data
 */
function core_hmac_sha1(key, data) {
 var bkey = str2binb(key);
 if (bkey.length > 16) bkey = core_sha1(bkey, key.length * chrsz);
 var ipad = Array(16),
  opad = Array(16);
 for (var i = 0; i < 16; i++) {
  ipad[i] = bkey[i] ^ 0x36363636;
  opad[i] = bkey[i] ^ 0x5C5C5C5C;
 }
 var hash = core_sha1(ipad.concat(str2binb(data)), 512 + data.length * chrsz);
 return core_sha1(opad.concat(hash), 512 + 160);
}
/*
 * Add integers, wrapping at 2^32. This uses 16-bit operations internally
 * to work around bugs in some JS interpreters.
 */
function safe_add(x, y) {
 var lsw = (x & 0xFFFF) + (y & 0xFFFF);
 var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
 return (msw << 16) | (lsw & 0xFFFF);
}
/*
 * Bitwise rotate a 32-bit number to the left.
 */
function rol(num, cnt) {
 return (num << cnt) | (num >>> (32 - cnt));
}
/*
 * Convert an 8-bit or 16-bit string to an array of big-endian words
 * In 8-bit function, characters >255 have their hi-byte silently ignored.
 */
function str2binb(str) {
 var bin = Array();
 var mask = (1 << chrsz) - 1;
 for (var i = 0; i < str.length * chrsz; i += chrsz)
 bin[i >> 5] |= (str.charCodeAt(i / chrsz) & mask) << (24 - i % 32);
 return bin;
}
/*
 * Convert an array of big-endian words to a string
 */
function binb2str(bin) {
 var str = "";
 var mask = (1 << chrsz) - 1;
 for (var i = 0; i < bin.length * 32; i += chrsz)
 str += String.fromCharCode((bin[i >> 5] >>> (24 - i % 32)) & mask);
 return str;
}
/*
 * Convert an array of big-endian words to a hex string.
 */
function binb2hex(binarray) {
 var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
 var str = "";
 for (var i = 0; i < binarray.length * 4; i++) {
  str += hex_tab.charAt((binarray[i >> 2] >> ((3 - i % 4) * 8 + 4)) & 0xF) + hex_tab.charAt((binarray[i >> 2] >> ((3 - i % 4) * 8)) & 0xF);
 }
 return str;
}
/*
 * Convert an array of big-endian words to a base-64 string
 */
function binb2b64(binarray) {
 var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 var str = "";
 for (var i = 0; i < binarray.length * 4; i += 3) {
  var triplet = (((binarray[i >> 2] >> 8 * (3 - i % 4)) & 0xFF) << 16) | (((binarray[i + 1 >> 2] >> 8 * (3 - (i + 1) % 4)) & 0xFF) << 8) | ((binarray[i + 2 >> 2] >> 8 * (3 - (i + 2) % 4)) & 0xFF);
  for (var j = 0; j < 4; j++) {
   if (i * 8 + j * 6 > binarray.length * 32) str += b64pad;
   else str += tab.charAt((triplet >> 6 * (3 - j)) & 0x3F);
  }
 }
 return str;
}
 
可参考：http://www.jb51.net/article/82831.htm

JS实现的base64加密、md5加密及sha1加密详解的更多相关文章

  1. [转]js中几种实用的跨域方法原理详解

    转自:js中几种实用的跨域方法原理详解 - 无双 - 博客园 // // 这里说的js跨域是指通过js在不同的域之间进行数据传输或通信,比如用ajax向一个不同的域请求数据,或者通过js获取页面中不同 ...

  2. [js高手之路] es6系列教程 - 对象功能扩展详解

    第一:字面量对象的方法,支持缩写形式 //es6之前,这么写 var User = { name : 'ghostwu', showName : function(){ return this.nam ...

  3. js基础--浏览器标签页隐藏或显示状态 visibility详解

    欢迎访问我的个人博客:http://www.xiaolongwu.cn 前言 在工作中我们可能会遇到这样的需求,当浏览器切换到别的标签页或着最小化时,我们需要暂停页面上正在播放的视频或者音乐,这个需求 ...

  4. js的常见的三种密码加密方式-MD5加密、Base64加密和解密和sha1加密详解总结

    写前端的时候,很多的时候是避免不了注册这一关的,但是一般的注册是没有任何的难度的,无非就是一些简单的获取用户输入的数据,然后进行简单的校验以后调用接口,将数据发送到后端,完成一个简单的注册的流程,那么 ...

  5. 4-13 Webpacker-React.js; 用React做一个下拉表格的功能: <详解>

    Rails5.1增加了Webpacker: Webpacker essentially is the decisions made by the Rails team and bundled up i ...

  6. js中几种实用的跨域方法原理详解（转）

    今天研究js跨域问题的时候发现一篇好博,非常详细地讲解了js几种跨域方法的原理,特分享一下. 原博地址:http://www.cnblogs.com/2050/p/3191744.html 下面正文开 ...

  7. js中几种实用的跨域方法原理详解

    这里说的js跨域是指通过js在不同的域之间进行数据传输或通信,比如用ajax向一个不同的域请求数据,或者通过js获取页面中不同域的框架中(iframe)的数据.只要协议.域名.端口有任何一个不同,都被 ...

  8. [js高手之路] es6系列教程 - promise常见用法详解(resolve,reject,catch,then,all,race)

    关于promise我在之前的文章已经应用过好几次,如[js高手之路]Node.js+jade+express+mongodb+mongoose+promise实现todolist,本文就来讲解下pro ...

  9. [js高手之路] es6系列教程 - 迭代器与生成器详解

    什么是迭代器? 迭代器是一种特殊对象,这种对象具有以下特点: 1,所有对象都有一个next方法 2,每次调用next方法,都会返回一个对象,该对象包含两个属性,一个是value, 表示下一个将要返回的 ...

  10. js中几种实用的跨域方法原理详解【转】

    源地址:http://www.cnblogs.com/2050/p/3191744.html 这里说的js跨域是指通过js在不同的域之间进行数据传输或通信,比如用ajax向一个不同的域请求数据,或者通 ...

随机推荐

  1. java组件学习15天

    Linuxdocker redminegitlabnginxmavenkibanakafkaspringspring cloudLucene 搭建基本使用

  2. 19.如何在vue里面调用其他js

    可以通过把js放到服务器,然后再html文件中通过链接的形式引入,这是目前我试过成功的唯一方法

  3. Jmeter(八)Jmeter监控tomcat

    1.配置tomcat的配置文件conf/tomcat-users.xml 2. 在“线程组”上右键“添加”--“配置元件”--“HTTP授权管理器”,这里主要是让JMeter能够通过Tomcat的基本 ...

  4. TQ2440系统介绍入门 、linux系统目录结构

    TQ2440开发板系统安装步骤: 1.先用JTAG线安装BIOS到开发板.下载BIOS,NOR/NAND开关选在NOR位置. 2.linux安装步骤: (1).格式化分区 (2).安装BIOS---& ...

  5. 算法总结之动态规划（DP）

    适用动态规划的特点 所解决的问题是最优化问题. 所解决的问题具有"最优子结构".可以建立一个递推关系,使得n阶段的问题,可以通过几个k<n阶段的低阶子问题的最优解来求解. 具 ...

  6. appium 底层原理

    appium的log详细分析http://blog.csdn.net/jffhy2017/article/details/69372064----------------------很多appium架 ...

  7. mysql数据库从删库到跑路之mysql库操作

    一 知识储备 MySQL数据库基本操作知识储备 数据库服务器:一台计算机(对内存要求比较高) 数据库管理系统:如mysql,是一个软件 数据库:oldboy_stu,相当于文件夹 表:student, ...

  8. node的3大作用域

    除了持久性存储外,想要内存也可以存入数据,来做计算什么数据都存入访问一便数据库,效率就太低了 java有3大作用域request 指在一次请求的全过程中有效,即从http请求到服务器处理结束,返回响应 ...

  9. 跨域问题-cors

    什么是跨域如大家所知,出于安全考虑,浏览器会限制脚本中发起的跨站请求.比如,使用 XMLHttpRequest 对象发起 HTTP 请求就必须遵守同源策略(same-origin policy). 具 ...

  10. Linux下编程学习一

    本篇主要记录一些在学习LINUX下编程时,, C和C++语言的一些基础的常识, 一. 函数指针 void MyFun(int x); 函数声明 void (*FunP)(int ); 函数指针声明 下 ...