40 lines
650 B
JavaScript
40 lines
650 B
JavaScript
class ArrayUtil {
|
|
|
|
static diff(a1, a2){
|
|
return a1.filter((a1n)=>{ return a2.indexOf(a1n) < 0; });
|
|
}
|
|
|
|
static selectMap(a, fnSelect, fnMap){
|
|
var map = [];
|
|
for (var elem of a){
|
|
if (fnSelect(elem)) map.push(fnMap(elem));
|
|
}
|
|
return map;
|
|
}
|
|
|
|
static any(a, fnCondition){
|
|
var any = false;
|
|
for (var elem of a){
|
|
if (fnCondition(elem)){
|
|
any = true;
|
|
break;
|
|
}
|
|
}
|
|
return any;
|
|
}
|
|
|
|
static all(a, fnCondition){
|
|
var all = true;
|
|
for (var elem of a){
|
|
if (!fnCondition(elem)){
|
|
all = false;
|
|
break;
|
|
}
|
|
}
|
|
return all;
|
|
}
|
|
|
|
}
|
|
|
|
export default ArrayUtil;
|