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Copy pathscript.js
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executable file
·71 lines (62 loc) · 1.52 KB
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let meetups = [{
name: 'JS',
isActive: true,
members: 700
}, {
name: 'Angular',
isActive: true,
members: 900
}, {
name: 'Node',
isActive: false,
members: 600
}, {
name: 'React',
isActive: true,
members: 500
}];
/*--------------------- */
let sum = 0;
let activeMeetups = []
for (let i = 0; i < meetups.length; i++) {
if (meetups[i].isActive) {
activeMeetups.push(meetups[i]);
}
}
for (let j=0; j<activeMeetups.length; j++) {
activeMeetups[j].members = activeMeetups[j].members- (0.1*activeMeetups[j].members)
sum += activeMeetups[j].members;
}
console.log(activeMeetups);
console.log(sum);
/*--------------------- */
let sumFP;
let isActiveMeetups = meetups.filter((m)=>{
return m.isActive;
});
let updatedMembers = isActiveMeetups.map((m)=>{
return m.members- (0.1*m.members);
});
sumFP = updatedMembers.reduce((acc, m)=>{
return acc + m;
},0);
console.log(sumFP);
/*--------------------- */
let sumFPChain = meetups.filter((m)=>{return m.isActive;})
.map((m)=>{return m.members- (0.1*m.members);})
.reduce((acc, m)=>{return acc + m;},0);
console.log(sumFPChain);
/*--------------------- */
function isActive(m) {
return m.isActive;
}
function subtractTenPercent(m) {
return m.members- (0.1*m.members)
}
function add(acc, m){
return acc + m;
}
let sumFPChain1 = meetups.filter(isActive)
.map(subtractTenPercent)
.reduce(add,0);
console.log(sumFPChain);