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feat: add support for typed arrays #72

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26 changes: 25 additions & 1 deletion jsesc.js
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Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,20 @@ const isSet = (value) => {

/*--------------------------------------------------------------------------*/

const typedArrayClassNames = [
'Uint8Array',
'Uint8ClampedArray',
'Uint16Array',
'Uint32Array',
'BigUint64Array',
'Int8Array',
'Int16Array',
'Int32Array',
'BigInt64Array',
'Float32Array',
'Float64Array'
]

// https://mathiasbynens.be/notes/javascript-escapes#single
const singleEscapes = {
'\\': '\\\\',
Expand Down Expand Up @@ -172,6 +186,16 @@ const jsesc = (argument, options) => {
}
return 'Buffer.from(' + jsesc(Array.from(argument), options) + ')';
}
const typedArrayClassName = typedArrayClassNames.find(
typedArray => toString.call(argument) == '[object ' + typedArray + ']'
);
if (typedArrayClassName) {
if (argument.length == 0) {
return 'new ' + typedArrayClassName + '()';
}
return 'new ' + typedArrayClassName + '(' +
jsesc(Array.from(argument), options) + ')';
}
if (isArray(argument)) {
result = [];
options.wrap = true;
Expand Down Expand Up @@ -332,6 +356,6 @@ const jsesc = (argument, options) => {
return result;
};

jsesc.version = '3.0.2';
jsesc.version = '3.1.0';

module.exports = jsesc;
24 changes: 24 additions & 0 deletions src/jsesc.js
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Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,20 @@ const isSet = (value) => {

/*--------------------------------------------------------------------------*/

const typedArrayClassNames = [
'Uint8Array',
'Uint8ClampedArray',
'Uint16Array',
'Uint32Array',
'BigUint64Array',
'Int8Array',
'Int16Array',
'Int32Array',
'BigInt64Array',
'Float32Array',
'Float64Array'
]

// https://mathiasbynens.be/notes/javascript-escapes#single
const singleEscapes = {
'\\': '\\\\',
Expand Down Expand Up @@ -172,6 +186,16 @@ const jsesc = (argument, options) => {
}
return 'Buffer.from(' + jsesc(Array.from(argument), options) + ')';
}
const typedArrayClassName = typedArrayClassNames.find(
typedArray => toString.call(argument) == '[object ' + typedArray + ']'
);
if (typedArrayClassName) {
if (argument.length == 0) {
return 'new ' + typedArrayClassName + '()';
}
return 'new ' + typedArrayClassName + '(' +
jsesc(Array.from(argument), options) + ')';
}
if (isArray(argument)) {
result = [];
options.wrap = true;
Expand Down
55 changes: 55 additions & 0 deletions tests/tests.js
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Original file line number Diff line number Diff line change
Expand Up @@ -597,6 +597,61 @@ describe('common usage', function() {
'\\u2192\\xE9\\u{1F4A9}',
'Alphabetical hexadecimal digits are uppercase when `lowercaseHex: false` and `es6: true`'
);
assert.equal(
jsesc([new Uint8Array(), new Uint8Array([1, 2, 3])]),
'[new Uint8Array(),new Uint8Array([1,2,3])]',
'Uint8Array'
);
assert.equal(
jsesc([new Uint8ClampedArray(), new Uint8ClampedArray([1, 2, 3])]),
'[new Uint8ClampedArray(),new Uint8ClampedArray([1,2,3])]',
'Uint8ClampedArray'
);
assert.equal(
jsesc([new Uint16Array(), new Uint16Array([1, 2, 3])]),
'[new Uint16Array(),new Uint16Array([1,2,3])]',
'Uint16Array'
);
assert.equal(
jsesc([new Uint32Array(), new Uint32Array([1, 2, 3])]),
'[new Uint32Array(),new Uint32Array([1,2,3])]',
'Uint32Array'
);
assert.equal(
jsesc([new BigUint64Array(), new BigUint64Array([1n, 2n, 3n])]),
'[new BigUint64Array(),new BigUint64Array([1n,2n,3n])]',
'BigUint64Array'
);
assert.equal(
jsesc([new Int8Array(), new Int8Array([-1, 2, 3])]),
'[new Int8Array(),new Int8Array([-1,2,3])]',
'Int8Array'
);
assert.equal(
jsesc([new Int16Array(), new Int16Array([-1, 2, 3])]),
'[new Int16Array(),new Int16Array([-1,2,3])]',
'Int16Array'
);
assert.equal(
jsesc([new Int32Array(), new Int32Array([-1, 2, 3])]),
'[new Int32Array(),new Int32Array([-1,2,3])]',
'Int32Array'
);
assert.equal(
jsesc([new BigInt64Array(), new BigInt64Array([-1n, 2n, 3n])]),
'[new BigInt64Array(),new BigInt64Array([-1n,2n,3n])]',
'BigInt64Array'
);
assert.equal(
jsesc([new Float32Array(), new Float32Array([1.5, 2.5, 4.5])]),
'[new Float32Array(),new Float32Array([1.5,2.5,4.5])]',
'Float32Array'
);
assert.equal(
jsesc([new Float64Array(), new Float64Array([1.5, 2.5, 4.5])]),
'[new Float64Array(),new Float64Array([1.5,2.5,4.5])]',
'Float64Array'
);
});
});

Expand Down