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var array = [11,2,3,4,5]; | |
var isGreaterThanTen = array.every(function(item, index, array) { | |
let isLastIndex = index === array.length - 1; | |
if(isLastIndex === false) { | |
array[index + 1] += 10; | |
} | |
return item > 10; | |
}); |
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var arr = [false, false, true, true]; | |
var hasTrue = arr.some((item, index, arr) => { | |
arr.pop(); | |
return item; | |
}); | |
console.log(hasTrue); // false |
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var arr = [false, false, true, true]; | |
var hasTrue = arr.some((item, index, arr) => { | |
arr.pop(); | |
return item; | |
}); | |
console.log(hasTrue); // false |
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var arr = [false,false]; | |
let hasTrue = arr.some((item, index, arr) => { | |
arr.push(true); | |
return item; | |
}); | |
console.log(hasTrue); // false |
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var array = [false, false,false]; | |
var hasTrue = array.some( function(item, index, array) { | |
let isLastIndex = index === array.length - 1; | |
if(isLastIndex === false) { | |
array[index + 1] = true; | |
} | |
return item; | |
}); |
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class Stack { | |
constructor(){ | |
this.data = []; | |
this.top = 0; | |
} | |
push(element) { | |
this.data[this.top] = element; | |
this.top = this.top + 1; | |
} | |
length() { |
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class Queue { | |
constructor(){ | |
this.data = []; | |
this.rear = 0; | |
this.size = 10; | |
} | |
enqueue(element) { |
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var obj = {one : 1, two : 2}; | |
var copiedObj = {...obj}; | |
copiedObj.one = 3; | |
console.log(copiedObj.one); // 3 | |
console.log(obj.one); // 1 |
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function copy(sourceObj) { | |
let targetObj = {}; | |
let keys = Object.keys(sourceObj); | |
for (let i = 0, len = keys.length; i < len; i++) { | |
let key = keys[i]; | |
targetObj[key] = sourceObj[key]; | |
} | |
return targetObj; | |
} |
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function JSONCopy(source) { | |
return JSON.parse(JSON.stringify(source)); | |
} |