Promises, handlers, and chains are foundations of modern JavaScript, but they can be tricky. Here are four common traps to ...

Here's how to write JavaScript statements ... and they can also be used to declare classes and functions. Unlike properties, methods, and events, which are inseparable from the object that ...

After adding "y" to "x," JavaScript stores "11.234" in the "z" variable. You can control the number of decimal points that appear in a result by using the "toFixed" function. Instead of adding "x ...

JavaScript Custom Functions will be made available ... And you won't even have to show these in the spreadsheet to use them in a function. For example, if A1 is 'Microsoft' and A2 is 'Seattle ...