Snippets
customBind
Function.prototype.customBind = function (obj, ...args) {
if (obj == null) {
obj = this
}
return (...closureFnArgs) => {
this.apply(obj, args.concat(closureFnArgs))
}
}숫자 천단위마다 콤마 찍기
const num = 10203040
const num2 = 10203040.12345
console.log(num.toLocaleString()) // 10,203,040
console.log(num2.toLocaleString()) // 기본으로 소수점 3자리에서 끊김 10,203,040.123
console.log(num2.toLocaleString(undefined, { maximumFractionDigits: 5 })) // 10,203,040.12345조건에 따른 프로퍼티 삽입문 축약
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