freeCodeCamp/guide/english/javascript/truth-table/index.md

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title: Truth Table
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![A table showing which JavaScript arguments are true and false.](//discourse-user-assets.s3.amazonaws.com/original/2X/f/ff2c78476742e6e677e5c714341ff37e9f60c951.png)

This is why you should always use `===` and `!==`.

Source: <a href='https://dorey.github.io/JavaScript-Equality-Table/' target='_blank' rel='nofollow'>https://dorey.github.io/JavaScript-Equality-Table/</a>
<a href='https://dorey.github.io/JavaScript-Equality-Table/unified/' target='_blank' rel='nofollow'>unified table</a>