4 Ways to Convert from String to Number
We can convert from String to Number by Number, parseInt, + or ~~ operator.
Why Number Literal has Instance Methods ?
We often use Number Literal in Practical, not Wrapper Object of Number. We can call instance method directly on Number Literal. But why?
Using Primitive Wrapper Object to Wrap Number
In addition to using Primitive for Number, we can use Primitive Wrapper Object to wrap Number.
6 Ways to Define Integer Literal
We can define integer literal in decimal, hexadecimal, octal or binary.
Modifying Default Templates of HTML
WebStorm provides many templates. If default templates are not suitable for us, we can modify them directly.
Using Symbol Property to Make Property Invisible
If we want to add invisible properties to the Object, we can use Symbol Property to make properties invisible.
Using Symbol Method to Make Method Invisible
If we want to add invisible methods to the Object, we can use Symbol Method to make methods invisible.
Integrating Nunjucks with WebStorm
WebStorm doesn’t support Nunjucks by default, and we have to add the Twig plugin manually to integrate Numjucks with WebStorm.
Using console.error to Display Runtime Error
console.log、console.warn and console.error can display debugging messages on the console, but console.error is suitable for displaying runtime error.
Using console.warn to Make Debugging Messages Different
Although we can fully customize console.log with CSS inline style, console.warn provides a simple way to make debugging messages a little different from console.log.