The Code Log

ES8 allows the use of trailing commas in function parameter lists and calls, which is useful especially when using version control since no unnecessary editing…

Object.values returns an array of a given object’s own enumerable property values, in the same order as that provided by a for…in loop (the difference…

padStart() pads the current string with another string (repeated, if needed) so that the resulting string reaches the given length. The padding is applied from…

Async functions are built on top of Promises. They can contain an await expression that pauses the execution of the async function and waits for…

The exponentiation operator has the same purpose as Math.pow(). It accepts base on its left-hand side and exponent on its right-hand side and returns the…

Array.prototype.includes() determines whether an array includes a certain value, returning true or false as appropriate. See the Pen thecodelog.com – ES7 Array Methods 1 by…

There has been several Number static methods added. Number.isNaN() determines whether the passed value is NaN and its type is Number. It is a more…

There has been several Object static methods added. Object.is() determines whether two values are the same value without coercion and returns a boolean value. In…

The WeakMap object is a collection of key/value pairs in which the keys are weakly referenced. The keys must be objects and the values can…

The Map object holds key-value pairs. Any value (both objects and primitive values) may be used as either a key or a value. See the…