Console.warn()
Outputs a warning message to the Web Console.
Note: This feature is available in Web Workers.
Note
In Chrome and Firefox, warnings have a small exclamation point icon next to them in the Web Console log.
Syntax
console.warn(obj1 [, obj2, ..., objN]);
console.warn(msg [, subst1, ..., substN]);
Parameters
obj1
...objN
- A list of JavaScript objects to output. The string representations of each of these objects are appended together in the order listed and output.
msg
- A JavaScript string containing zero or more substitution strings.
subst1
...substN
- JavaScript objects with which to replace substitution strings within
msg
. This gives you additional control over the format of the output.
See Outputting
text to the console in the documentation of console
for details.
Specifications
Specification | Status | Comment |
---|---|---|
Console API The definition of 'console.warn()' in that specification. |
Living Standard | Initial definition |
Browser compatibility
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