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Commit2e3860f

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Add linear search.
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‎README.md

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*[Rabin Karp Algorithm](https://github.com/trekhleb/javascript-algorithms/tree/master/src/algorithms/string/rabin-karp) - substring search
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*[Longest Common Substring](https://github.com/trekhleb/javascript-algorithms/tree/master/src/algorithms/string/longest-common-substring)
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***Search**
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*[Linear Search](https://github.com/trekhleb/javascript-algorithms/tree/master/src/algorithms/search/linear-search)
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*[Binary Search](https://github.com/trekhleb/javascript-algorithms/tree/master/src/algorithms/search/binary-search)
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***Sorting**
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*[Bubble Sort](https://github.com/trekhleb/javascript-algorithms/tree/master/src/algorithms/sorting/bubble-sort)
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#Linear Search
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In computer science, linear search or sequential search is a
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method for finding a target value within a list. It sequentially
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checks each element of the list for the target value until a
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match is found or until all the elements have been searched.
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Linear search runs in at worst linear time and makes at most`n`
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comparisons, where`n` is the length of the list.
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![Linear Search](https://www.tutorialspoint.com/data_structures_algorithms/images/linear_search.gif)
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##References
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-[Wikipedia](https://en.wikipedia.org/wiki/Linear_search)
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-[TutorialsPoint](https://www.tutorialspoint.com/data_structures_algorithms/linear_search_algorithm.htm)
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-[Youtube](https://www.youtube.com/watch?v=SGU9duLE30w)

‎src/algorithms/search/linear-search/Readme.md

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importlinearSearchfrom'../linearSearch';
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describe('linearSearch',()=>{
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it('should search all numbers in array',()=>{
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constarray=[1,2,4,6,2];
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expect(linearSearch(array,10)).toEqual([]);
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expect(linearSearch(array,1)).toEqual([0]);
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expect(linearSearch(array,2)).toEqual([1,4]);
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});
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it('should search all strings in array',()=>{
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constarray=['a','b','a'];
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expect(linearSearch(array,'c')).toEqual([]);
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expect(linearSearch(array,'b')).toEqual([1]);
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expect(linearSearch(array,'a')).toEqual([0,2]);
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});
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it('should search through objects as well',()=>{
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constcomparatorCallback=(a,b)=>{
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if(a.key===b.key){
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return0;
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}
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returna.key<=b.key ?-1 :1;
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};
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constarray=[
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{key:5},
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{key:6},
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{key:7},
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{key:6},
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];
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expect(linearSearch(array,{key:10},comparatorCallback)).toEqual([]);
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expect(linearSearch(array,{key:5},comparatorCallback)).toEqual([0]);
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expect(linearSearch(array,{key:6},comparatorCallback)).toEqual([1,3]);
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});
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});
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importComparatorfrom'../../../utils/comparator/Comparator';
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/**
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*@param {*[]} array
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*@param {*} seekElement
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*@param {function(a, b)} [comparatorCallback]
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*@return {number[]}
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*/
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exportdefaultfunctionlinearSearch(array,seekElement,comparatorCallback){
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constcomparator=newComparator(comparatorCallback);
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constfoundIndices=[];
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array.forEach((element,index)=>{
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if(comparator.equal(element,seekElement)){
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foundIndices.push(index);
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}
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});
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returnfoundIndices;
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}

‎src/algorithms/search/linear-search/linearsearch.js

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