Dec 11, 2008 · ECMA-262 is the specification for a scripting language of which JavaScript is a dialect. Of course in practice it matters more how the most important browsers behave than an esoteric …

Jul 8, 2025 · Equality comparisons and sameness JavaScript provides three different value-comparison operations: === — strict equality (triple equals) == — loose equality (double equals) Object.is() …

Jul 11, 2025 · Now, our main concern is getting to know the difference between the '==' and '===' operators that the javascript provides, though they look similar, they are very different.

Nov 22, 2024 · What is === in JavaScript? === (Triple equals) is a strict equality comparison operator in JavaScript, which returns false for the values which are not of a similar type.

Feb 14, 2023 · The == and === operators in JavaScript are comparison operators that we use to determine if two values are equal or not. The == operator performs a loose equality comparison that …

When comparing a string with a number, JavaScript will convert the string to a number when doing the comparison. An empty string converts to 0. A non-numeric string converts to NaN which is always …

Jul 1, 2024 · In JavaScript, understanding the differences between == and === is crucial for writing effective and bug-free code. Both operators are used to compare values, but they do so in distinct …

Jul 12, 2025 · In JavaScript, == and === are comparison operators that determine whether two values are equal, but they work differently. The double equals operator (==) is called the loose equality …

Nov 12, 2025 · In this article we’ll learn more about different types of comparisons, how JavaScript makes them, including important peculiarities. At the end you’ll find a good recipe to avoid …

Feb 22, 2023 · JavaScript is interesting because it's got two visually very similar, but in practice very different comparison operators for equality: == and ===. In this article, we will explain the differences …