loggable-error
v1.0.2
Published
Stringifies errors into a format similar to console.log
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loggable-error
In those times when you need to log an error to somewhere other than standard output, this simple module stringifies Error objects in a format akin to console.log
:
// supports cjs require
const stringify = require('loggable-error');
// or esm import
// import stringify from 'loggable-error';
try {
throw new Error('testing one two three');
} catch(e) {
fs.writeFileSync(
'/home/jdoe/log.txt',
stringify(e)
);
}
Open up said file and you'll find something along the lines of:
Error: testing one two three
at Object.<anonymous> (/home/jdoe/test.js:7:9)
at Module._compile (node:internal/modules/cjs/loader:1126:14)
at Object.Module._extensions..js (node:internal/modules/cjs/loader:1180:10)
at Module.load (node:internal/modules/cjs/loader:1004:32)
at Function.Module._load (node:internal/modules/cjs/loader:839:12)
at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
at node:internal/main/run_main_module:17:47
Stringification Options
Our exported function accepts a second options
argument, in case you want to control whether stack traces are displayed or the amount of starting indentation:
stringify(e, { stack: false });
// => 'Error: testing one two three'
stringify(e, { depth: 8 });
/* =>
' Error: testing one two three\n' +
' at Object.<anonymous> (/home/jdoe/test.js:7:9)\n' +
' at Module._compile (node:internal/modules/cjs/loader:1546:14)\n' +
' at Module._extensions..js (node:internal/modules/cjs/loader:1691:10)\n' +
' at Module.load (node:internal/modules/cjs/loader:1317:32)\n' +
' at Module._load (node:internal/modules/cjs/loader:1127:12)\n' +
' at TracingChannel.traceSync (node:diagnostics_channel:315:14)\n' +
' at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)\n' +
' at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:166:5)\n' +
' at node:internal/main/run_main_module:30:49'
*/