{"id":119,"date":"2007-08-18T02:14:13","date_gmt":"2007-08-18T00:14:13","guid":{"rendered":"http:\/\/vermiip.es\/blog\/2007\/08\/18\/error-en-parseint-de-javascript-y-jscript\/"},"modified":"2007-08-18T02:14:13","modified_gmt":"2007-08-18T00:14:13","slug":"error-en-parseint-de-javascript-y-jscript","status":"publish","type":"post","link":"https:\/\/vermiip.es\/blog\/error-en-parseint-de-javascript-y-jscript\/","title":{"rendered":"Error en parseInt de JavaScript y JScript"},"content":{"rendered":"<p>Al convertir una cadena texto a num\u00e9rico con la funci\u00f3n de JavaScript <strong>parseInt<\/strong> existe un peque\u00f1o error cuando la cadena empieza por \u00ab0\u00bb, por ejemplo:<\/p>\n<blockquote><p><em>[script]<\/em><\/p>\n<p><em>siete = parseInt(\u00ab7\u00bb) \u00a0\u00a0\u00a0\u00a0 \/\/\u00a0nos devuelve 7\u00a0<br \/>\nsieteb = parseInt(\u00ab07\u00bb)\u00a0\u00a0 \/\/ nos devuelve 7\u00a0<\/em><\/p>\n<p><em>ocho = parseInt(\u00ab8\u00bb)\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ nos devuelve\u00a08\u00a0<br \/>\nochob = parseInt(\u00ab08\u00bb)\u00a0\u00a0 \/\/ nos devuelve 0 !!<\/em><\/p>\n<p><em>nueve\u00a0= parseInt(\u00ab9\u00bb)\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ nos devuelve\u00a09\u00a0<br \/>\nnueveb = parseInt(\u00ab09\u00bb)\u00a0\u00a0 \/\/ nos devuelve 0 !!<\/em><\/p>\n<p><em>[\/script]<\/em><\/p><\/blockquote>\n<p>\u00a0Este error afecta tanto a JavaScript como a JScript(asp) y parece ser que al comenzar la cadena por \u00ab0\u00bb cambia a <strong>base Octal<\/strong> dando\u00a0\u00ab0\u00bb\u00a0al convertir 8 y 9 que no existen en esa base. El problema es\u00a0bastante significativo\u00a0al tratar fechas estilo dd\/mm\/aaaa, descomponer\u00a0dicha cadena\u00a0en d\u00eda, mes y a\u00f1o para despu\u00e9s convertirla en n\u00famero. De\u00a0esta manera\u00a0Agosto\u00a0 y Septiembre (\u00ab08\u00bb y \u00ab09\u00bb)\u00a0\u00a0ser\u00edan 0 en vez de 8 y 9.<\/p>\n<p>La soluci\u00f3n es a\u00f1adir la base en la que debe trabajar la funci\u00f3n parseInt. Para ello basta con a\u00f1adir\u00a0\u00ab10\u00bb a la funci\u00f3n de la siguiente manera:<\/p>\n<blockquote><p><em>[script]<\/em><\/p>\n<p><em>ocho = parseInt(\u00ab08\u00bb,10)\u00a0 \/\/ Ahora devuelve 8, quedando definitivamente solucionado este \u00abBug\u00bb<\/em><\/p>\n<p><em>[\/script]<\/em>\u00a0\u00a0<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Al convertir una cadena texto a num\u00e9rico con la funci\u00f3n de JavaScript parseInt existe un peque\u00f1o error cuando la cadena empieza por \u00ab0\u00bb, por ejemplo: [script] siete = parseInt(\u00ab7\u00bb) \u00a0\u00a0\u00a0\u00a0 \/\/\u00a0nos devuelve 7\u00a0 sieteb = parseInt(\u00ab07\u00bb)\u00a0\u00a0 \/\/ nos devuelve 7\u00a0 ocho = parseInt(\u00ab8\u00bb)\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ nos devuelve\u00a08\u00a0 ochob = parseInt(\u00ab08\u00bb)\u00a0\u00a0 \/\/ nos devuelve 0 !! nueve\u00a0= [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-119","post","type-post","status-publish","format-standard","hentry","category-lenguajes-de-programacion"],"_wp_attached_file":null,"_wp_attachment_metadata":null,"_wp_old_slug":null,"_aioseop_description":null,"_wp_attachment_image_alt":null,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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