wip: migrate to bun

src/toNumber.ts

@@ -0,0 +1,67 @@
+import isObject from './isObject.js';
+import isSymbol from './isSymbol.js';
+
+/** Used as references for various `Number` constants. */
+const NAN = 0 / 0;
+
+/** Used to match leading and trailing whitespace. */
+const reTrim = /^\s+|\s+$/g;
+
+/** Used to detect bad signed hexadecimal string values. */
+const reIsBadHex = /^[-+]0x[0-9a-f]+$/i;
+
+/** Used to detect binary string values. */
+const reIsBinary = /^0b[01]+$/i;
+
+/** Used to detect octal string values. */
+const reIsOctal = /^0o[0-7]+$/i;
+
+/** Built-in method references without a dependency on `root`. */
+const freeParseInt = parseInt;
+
+/**
+ * Converts `value` to a number.
+ *
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to process.
+ * @returns {number} Returns the number.
+ * @see isInteger, toInteger, isNumber
+ * @example
+ *
+ * toNumber(3.2)
+ * // => 3.2
+ *
+ * toNumber(Number.MIN_VALUE)
+ * // => 5e-324
+ *
+ * toNumber(Infinity)
+ * // => Infinity
+ *
+ * toNumber('3.2')
+ * // => 3.2
+ */
+function toNumber(value) {
+    if (typeof value === 'number') {
+        return value;
+    }
+    if (isSymbol(value)) {
+        return NAN;
+    }
+    if (isObject(value)) {
+        const other = typeof value.valueOf === 'function' ? value.valueOf() : value;
+        value = isObject(other) ? `${other}` : other;
+    }
+    if (typeof value !== 'string') {
+        return value === 0 ? value : +value;
+    }
+    value = value.replace(reTrim, '');
+    const isBinary = reIsBinary.test(value);
+    return isBinary || reIsOctal.test(value)
+        ? freeParseInt(value.slice(2), isBinary ? 2 : 8)
+        : reIsBadHex.test(value)
+        ? NAN
+        : +value;
+}
+
+export default toNumber;