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Use strict
Use strict
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Use strict
Use strict
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Use strict
Use strict
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Use strict

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Budapest.js 2011.02.21.

Budapest.js 2011.02.21.

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  • 1. HTTP://WWW.VIRTUAL-CALL-CENTER.EU/ use strict Farkas Máté budapest.js, 2011.02.21
  • 2. HTTP://WWW.VIRTUAL-CALL-CENTER.EU/ use strict but don’t Farkas Máté budapest.js, 2011.02.21
  • 3. HTTP://WWW.VIRTUAL-CALL-CENTER.EU/ use strict but don’t "use strict"; Farkas Máté budapest.js, 2011.02.21
  • 4. A strict mód használatának előnyeiKevesebb „nyelvi hiba”Gyorsabb futásKevesebb programozói hiba
  • 5. Kevesebb „nyelvi hiba”Nincs oktális számvar n = parseInt(str);var x = 010;
  • 6. Gyorsabb futásarguments.calleearguments.callerfunc.callerfunc.arguments
  • 7. Kevesebb programozói hibaNincs with, a this nem lesz global scope, nem lehet felülírni a NaN, undefined, stb. érté- keket, muszáj var…
  • 8. „Böngésző” támogatottságFirefox 4.0WebkitBESEN
  • 9. Más problémák"use strict";/* … */
  • 10. Más problémák(function() { "use strict"; /* … */})();
  • 11. HTTP://WWW.VIRTUAL-CALL-CENTER.EU/ use strict but don’t "use strict"; Farkas Máté budapest.js, 2011.02.21
  • 12. LINKEKFarkas Máté – szofverfejlesztő (JavaScript, XUL) http://farkas-mate.hu/ http://weblabor.hu/tagok/1741 http://twitter.com/fmhuStrict mode http://dmitrysoshnikov.com/ecmascript/es5-chapter-2-strict-mode/ http://hacks.mozilla.org/2011/01/ecmascript-5-strict-mode-in-firefox-4/ http://weblabor.hu/blog/20100922/ecmascript-strict-mod-teljesitmeny http://ejohn.org/blog/ecmascript-5-strict-mode-json-and-more/Virtual Call Center (munkahely) http://www.virtual-call-center.eu/huKisdaróczy Gábor (design segítség) http://ironwill.hu

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