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Difference between console.log and process.stdout.write in NodeJS
Both the methods – console.log and process.stdout.write have a basic definition to write or print the statements on the console. But, there is a slight difference in the way they execute these tasks. Internally, console.log implements process.stdout.write which itself is a buffer stream that will be used to directly print statements on your console.
| process.stdout.write |
console.log |
|---|---|
| It continuously prints information as retrieved from the stream without adding any new line. |
It first prints the information being retrieved and then adds a new line. Then it will go to retrieve the second set of statements to print. |
| The process.stdout.write method takes only string as paramter. Other datatypes passed will result in a type error. |
It can take any type of input parameter. |
| We will get a weird characted if we don't put the breakline at the end. |
We donot need any break line here as the text is already formatted, also the character disappears itself. |
| It is used for printing patterns, since it does not adds a new line. |
It is used when we require a new line after printing a statement. |
| It cannot be used to print multiple strings at a time. For example, process.stdout.write("Hello", "World"); will throw a type error as it is not a string anymore. |
We can write multiple strings using this method. For example, console.log("Hello", "World"); will print Hello World in console. |
| This method cannot associate two string types. For example, process.stdout.write("Hello %s", "All"); will throw a type error/ |
This method can be used for making associations. For example, console.log("Hello %s", "All"); will print Hello All on the console. |
process.stdout.write
Example 1
<script>
// For process.stdout
process.stdout.write("Hello");
process.stdout.write("World");
process.stdout.write("!!!");
</script>
Output
HelloWorld!!! console.log
Example 2
<script>
// For process.stdout
console.log("Hello");
console("World");
console.log("!!!");
</script>
Output
Hello World !!!
Updated on: 2021-04-27T09:27:06+05:30
1K+ Views
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