有条件地探测变量

🌐 Probing a variable conditionally

// app.js
let total = 0;
for (let i = 0; i < 10; i++) {
  total += i;  // line 4
} 拷贝

$ out/Release/node inspect --probe app.js:4 --expr 'total' \
                           --cond 'i % 3 === 0' app.js 拷贝

Hit 1 at file:///path/to/app.js:3:3
  total = 0
Hit 2 at file:///path/to/app.js:3:3
  total = 3
Hit 3 at file:///path/to/app.js:3:3
  total = 15
Hit 4 at file:///path/to/app.js:3:3
  total = 36
Completed 拷贝