javascript parseInt("08") return the value 0

[cubrad]

the javascript function parseInt returns 0 when used with the string "08" or "09" :

parseInt("08") returns the value 0
parseInt("09") returns the value 0
but
parseInt("01") returns the value 1
parseInt("02") returns the value 2
and so on until "07"

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: firefox 7.0.1+build1+nobinonly-0ubuntu0.11.04.1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: michel 2119 F.... pulseaudio
BuildID: 20110928224508
Card0.Amixer.info:
 Card hw:0 'NVidia'/'HDA NVidia at 0xfe020000 irq 21'
   Mixer name : 'Nvidia MCP77/78 HDMI'
   Components : 'HDA:10ec0888,10438321,00100101 HDA:10de0002,10de0101,00100000'
   Controls : 44
   Simple ctrls : 23
Channel: release
CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied
Date: Tue Nov 8 14:17:38 2011
ForcedLayersAccel: False
IncompatibleExtensions: JavaScript Debugger - ID={f13b157f-b174-47e7-a34d-4815ddfdfeb8}, Version=0.9.88.2, minVersion=1.9.1, maxVersion=2.0.*, Location=app-profile, Type=extension, Active=Yes
IpRoute:
 192.168.7.0/24 dev eth1 proto kernel scope link src 192.168.7.1 metric 1
 169.254.0.0/16 dev eth1 scope link metric 1000
 default via 192.168.7.126 dev eth1 proto static
Plugins:
 Shockwave Flash - Lib=libflashplayer.so, Location=/usr/lib/mozilla/plugins
 QuickTime Plug-in 7.6.6 - Lib=libtotem-narrowspace-plugin.so, Location=/usr/lib/mozilla/plugins
 DivX® Web Player - Lib=libtotem-mully-plugin.so, Location=/usr/lib/mozilla/plugins
 Windows Media Player Plug-in 10 (compatible; Totem) - Lib=libtotem-gmp-plugin.so, Location=/usr/lib/mozilla/plugins
 VLC Multimedia Plugin (compatible Totem 2.32.0) - Lib=libtotem-cone-plugin.so, Location=/usr/lib/mozilla/plugins
ProcEnviron:
 LANGUAGE=fr_FR:en
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=7.0.1/20110928224508 (Running)
RunningIncompatibleAddons: True
SourcePackage: firefox
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/11/2010
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: ASUS M3N-HD/HDMI ACPI BIOS Revision 2703
dmi.board.name: M3N-HD/HDMI
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: 1.XX
dmi.chassis.asset.tag: 123456789000
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvrASUSM3N-HD/HDMIACPIBIOSRevision2703:bd06/11/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM3N-HD/HDMI:rvr1.XX:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[Chris Coulson (chrisccoulson)]

That's expected. Numbers with a leading zero are considered octal numbers in Javascript, and "8" and "9" are not valid octal digits (which is why everything up to "07" works).

[cubrad (michel-lopez)]

Le mardi 08 novembre 2011 à 13:40 +0000, Chris Coulson a écrit :
> That's expected. Numbers with a leading zero are considered octal
> numbers in Javascript, and "8" and "9" are not valid octal digits (which
> is why everything up to "07" works).
>

lol, I spend a thousand hours looking why my script was bugging.

thanks for explaining this.