How to use the jest-get-type function in jest-get-type
To help you get started, we’ve selected a few jest-get-type examples, based on popular ways it is used in public projects.
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ChristopherChudzicki / math3d-react / client / src / utils / testing / matchers.js View on Github 
export function isNearlyEqual(a, b, config = {} ) {
const {
numDigits = 6,
nSamples = 5,
range = [1, 3]
} = config
if (getType(a) !== getType(b)) {
return false
}
switch (getType(a)) {
case 'number': {
return Math.abs(a - b) <= 10 ** -numDigits
}
case 'array': {
return a.length === b.length &&
a.every((item, index) => isNearlyEqual(item, b[index], config))
}
case 'function': {
// by using max arity, we allow that functions of different arity might be
// nearly equal. For example, x => 5 and (x, y) => 5
const arity = Math.max(a.length, b.length)
const [min, max] = range
const samples = genSamples(min, max, nSamples, arity)export function isNearlyEqual(a, b, config = {} ) {
const {
numDigits = 6,
nSamples = 5,
range = [1, 3]
} = config
if (getType(a) !== getType(b)) {
return false
}
switch (getType(a)) {
case 'number': {
return Math.abs(a - b) <= 10 ** -numDigits
}
case 'array': {
return a.length === b.length &&
a.every((item, index) => isNearlyEqual(item, b[index], config))
}
case 'function': {
// by using max arity, we allow that functions of different arity might beconst isDate = value => getType(value) === 'date' && !isNaN(value);function throwOnBadArgs(givenStyle, windowHeight) {
if (getType(givenStyle) !== 'object' && givenStyle !== undefined)
throw Error(`style (the first argument) must be an object or undefined`);
if (typeof windowHeight !== 'number' || windowHeight < 0)
throw Error('Second argument (windowHeight) must be a non-negative number');
}jest-get-type
A utility function to get the type of a value
