• not a string (จࣈྻ͡Όͳ͔ͬͨ) • not an array index (ྻͷఴࣈ͡Ό ͳ͔ͬͨ) • etc https://github.com/v8/v8/blob/master/src/deoptimizer/deoptimize-reason.h • ༧ظͤ͵ૢ࡞ • cow array's elements changed (ίϐʔͨ͠ྻ͕มߋ͞Εͨ) • division by zero (θϩআࢉ) • Out of bounds (ྻͷൣғ͑) • etc
• not a string (จࣈྻ͡Όͳ͔ͬͨ) • not an array index (ྻͷఴࣈ͡Ό ͳ͔ͬͨ) • etc https://github.com/v8/v8/blob/master/src/deoptimizer/deoptimize-reason.h • ༧ظͤ͵ૢ࡞ • cow array's elements changed (ίϐʔͨ͠ྻ͕มߋ͞Εͨ) • division by zero (θϩআࢉ) • Out of bounds (ྻͷൣғ͑) • etc ֮͑Δඞཁͳ͍͕ɺॻ࣌͘ʹʮԿΛ͠ͳ͍ํ͕͍͍͔ʯΛ ͓͍ͬͯͨ΄͏͕ྑ͍ɻ