You can use the following

/*eslint-disable */

//suppress all warnings between comments
alert('foo');

/*eslint-enable */

Which is slightly buried the "configuring rules" section of the docs;

To disable a warning for an entire file, you can include a comment at the top of the file e.g.

/*eslint eqeqeq:0*/

Update

ESlint has now been updated with a better way disable a single line, see @goofballLogic's excellent answer.

You can also disable a specific rule/rules (rather than all) by specifying them in the enable (open) and disable (close) blocks:

/* eslint-disable no-alert, no-console */

alert('foo');
console.log('bar');

/* eslint-enable no-alert */

via @goofballMagic's link above: http://eslint.org/docs/user-guide/configuring.html#configuring-rules

Disabling Rules with Inline Comments

http://eslint.org/docs/user-guide/configuring#disabling-rules-with-inline-comments

/* eslint-disable no-alert, no-console */



/* eslint-disable */

alert('foo');

/* eslint-enable */





/* eslint-disable no-alert, no-console */

alert('foo');
console.log('bar');

/* eslint-enable no-alert, no-console */




/* eslint-disable */

alert('foo');


/* eslint-disable no-alert */

alert('foo');




alert('foo'); // eslint-disable-line

// eslint-disable-next-line
alert('foo');




alert('foo'); // eslint-disable-line no-alert

// eslint-disable-next-line no-alert
alert('foo');




alert('foo'); // eslint-disable-line no-alert, quotes, semi

// eslint-disable-next-line no-alert, quotes, semi
alert('foo');





foo(); // eslint-disable-line example/rule-name

The general end of line comment, // eslint-disable-line, does not need anything after it: no need to look up a code to specify what you wish ES Lint to ignore.

If you need to have any syntax ignored for any reason other than a quick debugging, you have problems: why not update your delint config?

I enjoy // eslint-disable-line to allow me to insert console for a quick inspection of a service, without my development environment holding me back because of the breach of protocol. (I generally ban console, and use a logging class - which sometimes builds upon console.)

Answer

You can use an inline comment: // eslint-disable-next-line rule-name.

Example

// eslint-disable-next-line no-console
console.log('eslint will ignore the no-console on this line of code');

Reference

ESLint - Disabling Rules with Inline Comments

To disable a single rule for the rest of the file below:

/* eslint no-undef: "off"*/
const uploadData = new FormData();

single line comment did not work for me inside a react dumb functional component, I have used file level disabling by adding
/* eslint-disable insertEslintErrorDefinitionHere */

(normally if you are using vs code and getting eslint error, you can click on the line which gives error and a bulb would show up in vs code, right click on the light bulb and choose any disable option and vs code will do it for you.)