fast-format
v0.2.0
A fast, simple string formatter like util.format() method in Node.js
3/weekUpdated 3 years agoMIT
Published by KNOWLEDECODE
npm install fast-formatfast-format
This is a string formatter like util.format() method in Node.js, supports just only %s placeholder but accordingly faster than that. It will be one of the best solution if need a speed rather than complex formatting.
Usage
Same as
util.format() method.``
js
format(formatString[, ...])
`If use one formatting repeatedly, recommended to compile the
in advance.
`js
format.compile(formatString)
`Example
js
let s = format('%s, %s!', 'Hello', 'world');
console.log(s); // => 'Hello, world!'
`
js
let f = format.compile('%s, %s!');
let s1 = f('Hello', 'world');
console.log(s1); // => 'Hello, world!'
let s2 = f('Howdy', 'World');
console.log(s2); // => 'Howdy, World!'
`Benchmark
js
// Bench 1
let s = Date.now();
for (let i = 0, len = 100000000; i < len; i++) {
format('i = %s, len = %s', i, len);
}
console.log(Date.now() - s);
`
js
// Bench 2
let s = Date.now();
let f = format.compile('i = %s, len = %s');
for (let i = 0, len = 100000000; i < len; i++) {
f(i, len);
}
console.log(Date.now() - s);
`environment1: Core i7 2.2GHz + Node.js v6.9.5
| module | time | bench |
|-------------|-------------|:-----:|
| fast-format | 12,388 msec | 2 |
| fast-format | 22,039 msec | 1 |
| util.format | 28,659 msec | 1 |
---
environment2: Core i7 2.2GHz + Google Chrome 56.0.2924.87
| module | time | bench |
|-------------|-------------|:-----:|
| fast-format | 12,898 msec | 2 |
| fast-format | 22,705 msec | 1 |
| util.format | 99,103 msec | 1 |
The
method was converted with Browserify to run on the browser.Installation
$3
`sh
npm install fast-format --save
`$3
sh
bower install fast-format
`$3
html
``Browser Support
Google Chrome, Firefox, Safari, Opera, Microsoft Edge and IE 6+
License
MIT