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Simplify _.dropRightWhile, _.dropWhile, _.takeRightWhile, and _.takeWhile.

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John-David Dalton
2014-06-22 14:41:31 -07:00
parent c550e27d21
commit 9577d80fc2
1 changed files with 8 additions and 16 deletions
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24
lodash.js
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@@ -2856,8 +2856,7 @@
while (index-- && predicate(array[index], index, array)) {
n++;
}
n = length - (n || 0);
return slice(array, 0, n < 0 ? 0 : n);
return slice(array, 0, length - n);
}
/**
@@ -2901,14 +2900,11 @@
*/
function dropWhile(array, predicate, thisArg) {
var index = -1,
length = array ? array.length : 0,
n = 0;
length = array ? array.length : 0;
predicate = lodash.callback(predicate, thisArg, 3);
while (++index < length && predicate(array[index], index, array)) {
n++;
}
return slice(array, n);
while (++index < length && predicate(array[index], index, array)) { }
return slice(array, index);
}
/**
@@ -3582,8 +3578,7 @@
while (index-- && predicate(array[index], index, array)) {
n++;
}
n = length - (n || 0);
return slice(array, n < 0 ? 0 : n);
return slice(array, length - n);
}
/**
@@ -3627,14 +3622,11 @@
*/
function takeWhile(array, predicate, thisArg) {
var index = -1,
length = array ? array.length : 0,
n = 0;
length = array ? array.length : 0;
predicate = lodash.callback(predicate, thisArg, 3);
while (++index < length && predicate(array[index], index, array)) {
n++;
}
return slice(array, 0, n < 0 ? 0 : n);
while (++index < length && predicate(array[index], index, array)) { }
return slice(array, 0, index);
}
/**