react-native-web-headroom
Version:
React Native Web Headroom
166 lines (158 loc) • 12.1 kB
JavaScript
var array;
module.exports = array = {
/*
Tries to turn anything into an array.
*/
from: function(r) {
return Array.prototype.slice.call(r);
},
/*
Clone of an array. Properties will be shallow copies.
*/
simpleClone: function(a) {
return a.slice(0);
},
shallowEqual: function(a1, a2) {
var i, val, _i, _len;
if (!(Array.isArray(a1) && Array.isArray(a2) && a1.length === a2.length)) {
return false;
}
for (i = _i = 0, _len = a1.length; _i < _len; i = ++_i) {
val = a1[i];
if (a2[i] !== val) {
return false;
}
}
return true;
},
pluck: function(a, i) {
var index, value, _i, _len;
if (a.length < 1) {
return a;
}
for (index = _i = 0, _len = a.length; _i < _len; index = ++_i) {
value = a[index];
if (index > i) {
a[index - 1] = a[index];
}
}
a.length = a.length - 1;
return a;
},
pluckItem: function(a, item) {
var index, removed, value, _i, _len;
if (a.length < 1) {
return a;
}
removed = 0;
for (index = _i = 0, _len = a.length; _i < _len; index = ++_i) {
value = a[index];
if (value === item) {
removed++;
continue;
}
if (removed !== 0) {
a[index - removed] = a[index];
}
}
if (removed > 0) {
a.length = a.length - removed;
}
return a;
},
pluckOneItem: function(a, item) {
var index, reached, value, _i, _len;
if (a.length < 1) {
return a;
}
reached = false;
for (index = _i = 0, _len = a.length; _i < _len; index = ++_i) {
value = a[index];
if (!reached) {
if (value === item) {
reached = true;
continue;
}
} else {
a[index - 1] = a[index];
}
}
if (reached) {
a.length = a.length - 1;
}
return a;
},
pluckByCallback: function(a, cb) {
var index, removed, value, _i, _len;
if (a.length < 1) {
return a;
}
removed = 0;
for (index = _i = 0, _len = a.length; _i < _len; index = ++_i) {
value = a[index];
if (cb(value, index)) {
removed++;
continue;
}
if (removed !== 0) {
a[index - removed] = a[index];
}
}
if (removed > 0) {
a.length = a.length - removed;
}
return a;
},
pluckMultiple: function(array, indexesToRemove) {
var i, removedSoFar, _i, _len;
if (array.length < 1) {
return array;
}
removedSoFar = 0;
indexesToRemove.sort();
for (_i = 0, _len = indexesToRemove.length; _i < _len; _i++) {
i = indexesToRemove[_i];
this.pluck(array, i - removedSoFar);
removedSoFar++;
}
return array;
},
injectByCallback: function(a, toInject, shouldInject) {
var i, len, val, valA, valB, _i, _len;
valA = null;
valB = null;
len = a.length;
if (len < 1) {
a.push(toInject);
return a;
}
for (i = _i = 0, _len = a.length; _i < _len; i = ++_i) {
val = a[i];
valA = valB;
valB = val;
if (shouldInject(valA, valB, toInject)) {
return a.splice(i, 0, toInject);
}
}
a.push(toInject);
return a;
},
injectInIndex: function(a, index, toInject) {
var i, len, toPut, toPutNext;
len = a.length;
i = index;
if (len < 1) {
a.push(toInject);
return a;
}
toPut = toInject;
toPutNext = null;
for(; i <= len; i++){
toPutNext = a[i];
a[i] = toPut;
toPut = toPutNext;
};
return null;
}
};
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Properties will be shallow copies.\n\t###\n\tsimpleClone: (a) ->\n\n\t\ta.slice 0\n\n\tshallowEqual: (a1, a2) ->\n\n\t\treturn no unless Array.isArray(a1) and Array.isArray(a2) and a1.length is a2.length\n\n\t\tfor val, i in a1\n\n\t\t\treturn no unless a2[i] is val\n\n\t\tyes\n\n\tpluck: (a, i) ->\n\n\t\treturn a if a.length < 1\n\n\n\t\tfor value, index in a\n\n\t\t\tif index > i\n\n\t\t\t\ta[index - 1] = a[index]\n\n\t\ta.length = a.length - 1\n\n\t\ta\n\n\tpluckItem: (a, item) ->\n\n\t\treturn a if a.length < 1\n\n\n\t\tremoved = 0\n\n\t\tfor value, index in a\n\n\t\t\tif value is item\n\n\t\t\t\tremoved++\n\n\t\t\t\tcontinue\n\n\t\t\tif removed isnt 0\n\n\t\t\t\ta[index - removed] = a[index]\n\n\t\ta.length = a.length - removed if removed > 0\n\n\t\ta\n\n\tpluckOneItem: (a, item) ->\n\n\t\treturn a if a.length < 1\n\n\t\treached = no\n\n\t\tfor value, index in a\n\n\t\t\tif not reached\n\n\t\t\t\tif value is item\n\n\t\t\t\t\treached = yes\n\n\t\t\t\t\tcontinue\n\n\t\t\telse\n\n\t\t\t\ta[index - 1] = a[index]\n\n\t\ta.length = a.length - 1 if reached\n\n\t\ta\n\n\tpluckByCallback: (a, cb) ->\n\n\t\treturn a if a.length < 1\n\n\t\tremoved = 0\n\n\t\tfor value, index in a\n\n\t\t\tif cb value, index\n\n\t\t\t\tremoved++\n\n\t\t\t\tcontinue\n\n\t\t\tif removed isnt 0\n\n\t\t\t\ta[index - removed] = a[index]\n\n\t\tif removed > 0\n\n\t\t\ta.length = a.length - removed\n\n\t\ta\n\n\tpluckMultiple: (array, indexesToRemove) ->\n\n\t\treturn array if array.length < 1\n\n\t\tremovedSoFar = 0\n\n\t\tindexesToRemove.sort()\n\n\t\tfor i in indexesToRemove\n\n\t\t\t@pluck array, i - removedSoFar\n\n\t\t\tremovedSoFar++\n\n\t\tarray\n\n\tinjectByCallback: (a, toInject, shouldInject) ->\n\n\t\tvalA = null\n\n\t\tvalB = null\n\n\t\tlen = a.length\n\n\t\tif len < 1\n\n\t\t\ta.push toInject\n\n\t\t\treturn a\n\n\n\t\tfor val, i in a\n\n\t\t\tvalA = valB\n\n\t\t\tvalB = val\n\n\t\t\tif shouldInject valA, valB, toInject\n\n\t\t\t\treturn a.splice i, 0, toInject\n\n\t\ta.push toInject\n\n\t\ta\n\n\tinjectInIndex: (a, index, toInject) ->\n\n\t\tlen = a.length\n\n\t\ti = index\n\n\t\tif len < 1\n\n\t\t\ta.push toInject\n\n\t\t\treturn a\n\n\t\ttoPut = toInject\n\n\t\ttoPutNext = null\n\n\t\t`for(; i <= len; i++){\n\n\t\t\ttoPutNext = a[i];\n\n\t\t\ta[i] = toPut;\n\n\t\t\ttoPut = toPutNext;\n\n\t\t}`\n\n\t\t# a[i] = toPut\n\n\t\tnull"]}