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Adding arrayChunk

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Lines changed: 40 additions & 0 deletions

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	`1`	`+// --- Directions`
	`2`	`+// Given an array and chunk size, divide the array into many subarrays`
	`3`	`+// where each subarray is of length size`
	`4`	`+// --- Examples`
	`5`	`+// chunk([1, 2, 3, 4], 2) --> [[ 1, 2], [3, 4]]`
	`6`	`+// chunk([1, 2, 3, 4, 5], 2) --> [[ 1, 2], [3, 4], [5]]`
	`7`	`+// chunk([1, 2, 3, 4, 5, 6, 7, 8], 3) --> [[ 1, 2, 3], [4, 5, 6], [7, 8]]`
	`8`	`+// chunk([1, 2, 3, 4, 5], 4) --> [[ 1, 2, 3, 4], [5]]`
	`9`	`+// chunk([1, 2, 3, 4, 5], 10) --> [[ 1, 2, 3, 4, 5]]`
	`10`	`+`
	`11`	`+// Solution No. 1`
	`12`	`+`
	`13`	`+function arrayChunk(array, size) {`
	`14`	`+ let chunked = [];`
	`15`	`+`
	`16`	`+ for(let element of array) {`
	`17`	`+ let lastElement = chunked[chunked.length -1];`
	`18`	`+`
	`19`	`+ if(!lastElement \|\| chunked.length === size) {`
	`20`	`+ chunked.push([element]);`
	`21`	`+ } else {`
	`22`	`+ lastElement.push(element);`
	`23`	`+ }`
	`24`	`+ }`
	`25`	`+`
	`26`	`+ return chunked;`
	`27`	`+}`
	`28`	`+`
	`29`	`+// Solution No. 2`
	`30`	`+`
	`31`	`+function arrayChunk(array, size) {`
	`32`	`+ let chunked = [];`
	`33`	`+ let index = 0;`
	`34`	`+ while(index < array.length) {`
	`35`	`+ chunked.push(array.slice(index, index+size));`
	`36`	`+ index += size;`
	`37`	`+ }`
	`38`	`+`
	`39`	`+ return chunked`
	`40`	`+}`

Lines changed: 43 additions & 0 deletions

Original file line number	Diff line number	Diff line change
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	`1`	`+# --- Directions`
	`2`	`+Given an array and chunk size, divide the array into many subarrays where each subarray is of length size`
	`3`	`+`
	`4`	`+# --- Examples`
	`5`	`+`
	`6`	`+* chunk([1, 2, 3, 4], 2) should return [[ 1, 2], [3, 4]]`
	`7`	`+* chunk([1, 2, 3, 4, 5], 2) should return [[ 1, 2], [3, 4], [5]]`
	`8`	`+* chunk([1, 2, 3, 4, 5, 6, 7, 8], 3) should return [[ 1, 2, 3], [4, 5, 6], [7, 8]]`
	`9`	`+* chunk([1, 2, 3, 4, 5], 4) should return [[ 1, 2, 3, 4], [5]]`
	`10`	`+* chunk([1, 2, 3, 4, 5], 10) should return [[ 1, 2, 3, 4, 5]]`
	`11`	`+`
	`12`	`+# --- Solution`
	`13`	`+`
	`14`	`+Solution No. 1`
	`15`	`+`
	`16`	`+ function arrayChunk(array, size) {`
	`17`	`+ let chunked = [];`
	`18`	`+`
	`19`	`+ for(let element of array) {`
	`20`	`+ let lastElement = chunked[chunked.length -1];`
	`21`	`+`
	`22`	`+ if(!lastElement \|\| chunked.length === size) {`
	`23`	`+ chunked.push([element]);`
	`24`	`+ } else {`
	`25`	`+ lastElement.push(element);`
	`26`	`+ }`
	`27`	`+ }`
	`28`	`+`
	`29`	`+ return chunked;`
	`30`	`+ }`
	`31`	`+`
	`32`	`+Solution No. 2`
	`33`	`+`
	`34`	`+ function arrayChunk(array, size) {`
	`35`	`+ let chunked = [];`
	`36`	`+ let index = 0;`
	`37`	`+ while(index < array.length) {`
	`38`	`+ chunked.push(array.slice(index, index+size));`
	`39`	`+ index += size;`
	`40`	`+ }`
	`41`	`+`
	`42`	`+ return chunked`
	`43`	`+ }`

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