nightfury7 /
universalbasics.js
| @@ 204-241 (lines=38) @@ | ||
| 201 | return big; |
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| 202 | }, |
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| 203 | ||
| 204 | indexOfMax: function(start=0, end=-1) { |
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| 205 | var vals = this; |
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| 206 | ||
| 207 | // exit quickly if few items .. and checking full array |
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| 208 | var len = vals.length; |
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| 209 | if (end === -1) { |
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| 210 | end = len - 1; |
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| 211 | } |
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| 212 | if (len === 0 || start > end) { |
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| 213 | return -1; |
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| 214 | } |
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| 215 | ||
| 216 | // check all values |
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| 217 | var big = Number.NEGATIVE_INFINITY; |
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| 218 | var slot = -1; |
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| 219 | var found = 0; |
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| 220 | for (var i = start; i <= end; i++) { |
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| 221 | ||
| 222 | // skip nulls |
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| 223 | var val = vals[i]; |
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| 224 | if (val != null) { |
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| 225 | found++; |
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| 226 | var num = val; |
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| 227 | if (num > big) { |
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| 228 | big = num; |
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| 229 | slot = i; |
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| 230 | } |
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| 231 | } |
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| 232 | } |
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| 233 | ||
| 234 | // exit if no non-null values found |
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| 235 | if (found === 0) { |
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| 236 | return -1; |
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| 237 | } |
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| 238 | ||
| 239 | // return calculated max value |
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| 240 | return slot; |
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| 241 | }, |
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| 242 | ||
| 243 | min: function(start=0, end=-1) { |
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| 244 | var vals = this; |
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| @@ 167-202 (lines=36) @@ | ||
| 164 | return sum; |
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| 165 | }, |
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| 166 | ||
| 167 | max: function(start=0, end=-1) { |
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| 168 | var vals = this; |
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| 169 | ||
| 170 | // exit quickly if few items .. and checking full array |
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| 171 | var len = vals.length; |
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| 172 | if (end === -1) { |
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| 173 | end = len - 1; |
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| 174 | } |
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| 175 | if (len === 0 || start > end) { |
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| 176 | return 0; |
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| 177 | } |
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| 178 | ||
| 179 | // check all values |
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| 180 | var big = Number.NEGATIVE_INFINITY; |
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| 181 | var found = 0; |
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| 182 | for (var i = start; i <= end; i++) { |
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| 183 | ||
| 184 | // skip nulls |
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| 185 | var val = vals[i]; |
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| 186 | if (val != null) { |
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| 187 | found++; |
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| 188 | var num = val; |
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| 189 | if (num > big) { |
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| 190 | big = num; |
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| 191 | } |
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| 192 | } |
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| 193 | } |
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| 194 | ||
| 195 | // exit if no non-null values found |
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| 196 | if (found === 0) { |
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| 197 | return 0; |
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| 198 | } |
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| 199 | ||
| 200 | // return calculated max value |
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| 201 | return big; |
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| 202 | }, |
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| 203 | ||
| 204 | indexOfMax: function(start=0, end=-1) { |
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| 205 | var vals = this; |
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