lego-tools

The tools library, now is support date|object|number.

Install

npm install --save lego-tools

example

new version

[0.1.2] add repeat and diff function to obj (high performance)

LT.obj.repeat([1, '1', 1, 2]) => [1, '1', 2] // array length is 1000000 only use 296ms (in mac)
LT.obj.repeat([{age: 1}, {age: 1}], 'age') => [{age: 1}]

let source2 = {age: 5, name: 'Ken'}
let target2 = {age: 5, name: 'Ken',}
LT.obj.diff(source, target) => false

let source = {age: 5, name: 'Ken', address: 'test'}
let target = {age: 5, name: 'Tom', fav: 'book'}
LT.obj.diff(source, target) => {add: {fav: 'book}, delete: {address: 'test'}, keep: {age: 5}, update: {source: {name: 'Ken'}, target: {name: 'Tome'}}}

[0.1.1] add sort function to obj

LT.obj.sort([{age:1}, {age:2}], 'age:desc') => [{age:2}, {age:1}]

Usage

#num

support js to compute the times,div,plus,minus

• function: compute(computeStr:string)
• params: computeStr - like -> (2+5)*3+(39.9*3)\2 -> 80.85
• return: number
• example: LT.num.compute('(2+5)*3+(39.9*3)\2')

format the num like round,ceil,floor

• function: format(num:string|number, targetFormat:string, type:string)
• params: num:12.34,'12.34' | targetFormat:'.','.0','.00'... and more | type:'round','ceil','floor'
• return: source num type
• example: LT.num.format(12.34, '.0', 'round') => 12.3

format the num like money show

• function: formatMoney(num:string|number, targetFormat:string(NULL), type:string(NULL))
• params: num:1234.34,'1234.34' | targetFormat:'.','.0','.00'... and more | type:'round','ceil','floor'
• return: string
• example: LT.num.formatMoney(1234.34) => 1,234.34

#obj

get value or list from object/array

• function: deepGet(data:object|array, keyStr)
• params: data | keyStr:object -> 'detail.name.version' / array -> 'detail.age>5&sex="man"'
• return: target vlaue/array
• example: LT.obj.deepGet({detail: {name: 'Tom'}}, 'detail.name') => Tom

set the target object

• function: deepSet(data:object, keyStr, vlaue:any)
• params: date | keyStr: 'detail.name.version' | value
• return: target object
• example: LT.obj.deepSet({detail: {name: 'Tom'}}, 'detail.age', 10) => {detail: {name: 'Tom', age: 10}}

sort array

• function: sort(data:array, express)
• params: date | keyStr: 'desc/asc' or 'detail.intro.age:desc/asc'
• return: data
• example: LT.obj.sort([{age:1}, {age:2}], 'age:desc') => [{age:2}, {age:1}]

#date

get current date

• function: now(targetFormat(NULL))
• params: targetFormat:yyyy-MM-dd HH:mm:ss
• return: date|string
• example: LT.date.now() => Date; LT.date.now('yyyy-MM-dd') => 2018-12-20

format target date/dateStr

• function: format(date:string|date, targetFormat)
• params: targetFormat:yyyy-MM-dd HH:mm:ss
• return: string
• example: LT.date.format(new Date()|'2018-12-20 13:59:30', 'yyyy-MM-dd') //=> 2018-12-20

add years,months,days,hours,minutes,second to date

• function: add(date:string|date, num:number, type:string, targetFormat:string)
• params: type:years,months,days,hours,minutes,second | targetFormat:yyyy-MM-dd HH:mm:ss
• return: source date type
• example: LT.date.add('2018-12-20 12:29:30'|new Date(), 1, 'months', 'yyyy-MM-dd HH:mm:ss') => 2019-01-20 12:29:30

subtract years,months,days,hours,minutes,second from date

• function: subtract(date:string|date, num:number, type:string, targetFormat:string(NULL))
• params: type:years,months,days,hours,minutes,second | targetFormat:yyyy-MM-dd HH:mm:ss
• return: source date type
• example: LT.date.subtract('2018-12-20 12:29:30'|new Date(), 1, 'months', 'yyyy-MM-dd HH:mm:ss') => 2018-11-20 12:29:30

diff two date

• function: diff(date:string|date, date:string|date)
• params: date
• return: object - {days: number, hours: number, minutes: number, seconds: number}
• example: LT.date.diff('2018-12-20 12:29:30', '2018-12-18 12:29:30') => {days: 2, hours: 0, minutes: 0, seconds: 0}

use in code:

const LT = require('lego-tools')//OR lego-tools/date
//todo
...