6 Ways to Define Integer Literal
We can define integer literal in decimal, hexadecimal, octal or binary.
タグ : ECMAScript
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.
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.
Using console.dir to Get The Property of DOM Element
If we use console.log to display the DOM element, we will get pure HTML only. What we have to do is using console.dir to get the property of the DOM element.
Using console.time to Measure the Performance
If we care about the performance of some code snippets, we can use console.time to measure the performance.
Using console.group to Group Debugging Messages
If we use console.log in the for loop, it may produce too many debugging messages to read. It’s a good time to use the console.group to group them under a group.
Using console.table to Display Array of Objects
Besides using console.log to display debugging messages, we can use console.table to display Array of Objects for a better layout.
Using CSS Inline Style with console.log
Not only just showing debugging messages on the console of DevTools, but we can also use CSS to change their style.