Secrets of the JavaScript Ninja

按有用程度 按页码先后 最新笔记

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  第1页

  挪墨

  Secrets of the JavaScript Ninja中找出一个数组中的最小值比较简洁的实现方法：function smallest(array){return Math.min.apply(Math, array);} (更多)

  Secrets of the JavaScript Ninja中找出一个数组中的最小值比较简洁的实现方法：function smallest(array){return Math.min.apply(Math, array);} (收起)

  2011-05-11 10:50:14   1回应

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  第64页

  29decibel (2Love&2Feel)

  /代码内容已省略/ (更多)

  function User(first, last){
    this.name = first + " " + last;
  }
  var name = "Resig";
  var user = User("John", name); // if you don't use "new" ,then "this" in the function will be the gloable object, so the "name" will be polluted
  assert( name == "John Resig",
    "The name variable is accidentally overridden." );
  

  (收起)

  2011-04-25 09:48:40   回应

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  第46页

  29decibel (2Love&2Feel)

  Partially applying a function is a, particularly, interesting technique in which you can pre-fill-in arguments, to a function, before it is ever executed. In effect, partially applying a function returns a new function which you can call. This is best understood through an example, as in Listing 3-8. /代码内容已省略/ partial is filling in some parameters and ... (更多)

  Partially applying a function is a, particularly, interesting technique in which you can pre-fill-in arguments, to a function, before it is ever executed. In effect, partially applying a function returns a new function which you can call. This is best understood through an example, as in Listing 3-8.

  
  String.prototype.csv = String.prototype.split.partial(/,\s*/);
  var results = ("John, Resig, Boston").csv(); assert( results[1] == "Resig",
  "The text values were split properly" );

  partial is filling in some parameters and return a new function (收起)

  2011-04-24 20:08:54   回应

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  第1页

  挪墨

  Secrets of the JavaScript Ninja中找出一个数组中的最小值比较简洁的实现方法：function smallest(array){return Math.min.apply(Math, array);} (更多)

  Secrets of the JavaScript Ninja中找出一个数组中的最小值比较简洁的实现方法：function smallest(array){return Math.min.apply(Math, array);} (收起)

  2011-05-11 10:50:14   1回应

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  第12页

  island205 (♥)

  In order to be a good JavaScript developer you need to maintain the traits that most good programmers have including testing, performance analysis, anddebugging. (更多)

  In order to be a good JavaScript developer you need to maintain the traits that most good programmers have including testing, performance analysis, anddebugging.

  (收起)

  2011-02-14 09:52:08   回应

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  第14页

  island205 (♥)

  • Firebug: The popular developer extension for Firefox http://getfirebug.org/ • IE Developer Tools: Included in Internet Explorer 8. • Opera Dragonfly: Included in Opera 9.5 and newer - also works with Mobile versions of Opera. • Safari Developer Tools: Introduced in Safari 3 and dramatically improved in Safari 4. /代码内容已省略/ opera 11.... (更多)

  • Firebug: The popular developer extension for Firefox http://getfirebug.org/ • IE Developer Tools: Included in Internet Explorer 8. • Opera Dragonfly: Included in Opera 9.5 and newer - also works with Mobile versions of Opera. • Safari Developer Tools: Introduced in Safari 3 and dramatically improved in Safari 4.

  function log() {
  try {
  console.log.apply( console, arguments );
  } catch(e) {
  try {
  opera.postError.apply( opera, arguments );
  } catch(e){
  alert( Array.prototype.join.call( arguments, " " ) );
  }
  }
  }
  

  opera 11.01 中已有console对象，且在Prototype中以opera中特有的opera对象来进行浏览器检测

  为什么要使用函数的apply方法，求高人指点 (收起)

  2011-02-14 10:01:02   3回应

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  第1页

  挪墨

  Secrets of the JavaScript Ninja中找出一个数组中的最小值比较简洁的实现方法：function smallest(array){return Math.min.apply(Math, array);} (更多)

  Secrets of the JavaScript Ninja中找出一个数组中的最小值比较简洁的实现方法：function smallest(array){return Math.min.apply(Math, array);} (收起)

  2011-05-11 10:50:14   1回应

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• 

  第64页

  29decibel (2Love&2Feel)

  /代码内容已省略/ (更多)

  function User(first, last){
    this.name = first + " " + last;
  }
  var name = "Resig";
  var user = User("John", name); // if you don't use "new" ,then "this" in the function will be the gloable object, so the "name" will be polluted
  assert( name == "John Resig",
    "The name variable is accidentally overridden." );
  

  (收起)

  2011-04-25 09:48:40   回应

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• 

  第46页

  29decibel (2Love&2Feel)

  Partially applying a function is a, particularly, interesting technique in which you can pre-fill-in arguments, to a function, before it is ever executed. In effect, partially applying a function returns a new function which you can call. This is best understood through an example, as in Listing 3-8. /代码内容已省略/ partial is filling in some parameters and ... (更多)

  Partially applying a function is a, particularly, interesting technique in which you can pre-fill-in arguments, to a function, before it is ever executed. In effect, partially applying a function returns a new function which you can call. This is best understood through an example, as in Listing 3-8.

  
  String.prototype.csv = String.prototype.split.partial(/,\s*/);
  var results = ("John, Resig, Boston").csv(); assert( results[1] == "Resig",
  "The text values were split properly" );

  partial is filling in some parameters and return a new function (收起)

  2011-04-24 20:08:54   回应

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