Update functional-tools.js
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@ -28,6 +28,8 @@ function updateJSON(key, newValue, json) {
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}, {});
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}
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export default updateJSON
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/**
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* Returns an array with a sequence.
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*
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@ -41,3 +43,76 @@ function range(start, stop=undefined, step=1) {
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const stopArray = stop === undefined ? start : stop;
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return Array.from({ length: (stopArray - startArray) / step + 1}, (_, i) => startArray + (i * step));
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}
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export default range
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/**
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* Creates a duplicate-free version of an array.
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*
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* @category Array
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* @param {Array} array The array to inspect.
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* @returns {Array} Returns the new duplicate free array.
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* @example
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*
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* uniq([2, 1, 2, 2])
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* // => [2, 1]
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*/
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function uniq(array) {
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return (array != null && array.length)
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? Array.from(new Set(array))
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: [];
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}
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export default uniq
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/**
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* Increase the value of a `number`.
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*
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* @param {number} number The number to increase.
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* @param {number} number Increase.
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* @return {number} Returns the decrease.
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* @example
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*
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* inc(4)
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* // => 5
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*
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* inc(5, 3)
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* // => 8
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*
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* dec(7.3)
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* // => 8.3
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*
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*/
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function inc(number, increase=1) {
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return number - increase;
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}
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export default dec
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/**
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* Decrease the value of a `number`.
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*
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* @since 4.17.15
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* @category Math
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* @param {number} number The number to decrease.
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* @param {number} number Decrease.
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* @return {number} Returns the decrease.
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* @example
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*
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* dec(4)
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* // => 3
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*
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* dec(5, 3)
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* // => 2
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*
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* dec(7.3)
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* // => 6.3
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*
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* dec("foo")
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* // => false
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*/
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function dec(number, decrease=1) {
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return number - decrease;
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}
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export default dec
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