Inline FUNC_ERROR_TEXT.

_baseDelay.js

@@ -1,6 +1,3 @@
-/** Error message constants. */
-const FUNC_ERROR_TEXT = 'Expected a function';
-
 /**
  * The base implementation of `delay` and `defer` which accepts `args`
  * to provide to `func`.
@@ -13,7 +10,7 @@ const FUNC_ERROR_TEXT = 'Expected a function';
  */
 function baseDelay(func, wait, args) {
   if (typeof func != 'function') {
-    throw new TypeError(FUNC_ERROR_TEXT);
+    throw new TypeError('Expected a function');
   }
   return setTimeout(() => func(...args), wait);
 }

_createFlow.js

@@ -1,6 +1,3 @@
-/** Error message constants. */
-const FUNC_ERROR_TEXT = 'Expected a function';
-
 /**
  * Creates a `flow` or `flowRight` function.
  *
@@ -22,7 +19,7 @@ function createFlow(fromRight) {
     while (index--) {
       func = funcs[index];
       if (typeof func != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
+        throw new TypeError('Expected a function');
       }
     }
     return function(...args) {

_createWrap.js

@@ -9,9 +9,6 @@ import setData from './_setData.js';
 import setWrapToString from './_setWrapToString.js';
 import toInteger from './toInteger.js';
 
-/** Error message constants. */
-const FUNC_ERROR_TEXT = 'Expected a function';
-
 /** Used to compose bitmasks for function metadata. */
 const WRAP_BIND_FLAG = 1;
 const WRAP_BIND_KEY_FLAG = 2;
@@ -51,7 +48,7 @@ const nativeMax = Math.max;
 function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
   const isBindKey = bitmask & WRAP_BIND_KEY_FLAG;
   if (!isBindKey && typeof func != 'function') {
-    throw new TypeError(FUNC_ERROR_TEXT);
+    throw new TypeError('Expected a function');
   }
   let length = partials ? partials.length : 0;
   if (!length) {

after.js

@@ -1,8 +1,5 @@
 import toInteger from './toInteger.js';
 
-/** Error message constants. */
-const FUNC_ERROR_TEXT = 'Expected a function';
-
 /**
  * The opposite of `before`; this method creates a function that invokes
  * `func` once it's called `n` or more times.
@@ -28,7 +25,7 @@ const FUNC_ERROR_TEXT = 'Expected a function';
  */
 function after(n, func) {
   if (typeof func != 'function') {
-    throw new TypeError(FUNC_ERROR_TEXT);
+    throw new TypeError('Expected a function');
   }
   n = toInteger(n);
   return function(...args) {

before.js

@@ -1,8 +1,5 @@
 import toInteger from './toInteger.js';
 
-/** Error message constants. */
-const FUNC_ERROR_TEXT = 'Expected a function';
-
 /**
  * Creates a function that invokes `func`, with the `this` binding and arguments
  * of the created function, while it's called less than `n` times. Subsequent
@@ -22,7 +19,7 @@ const FUNC_ERROR_TEXT = 'Expected a function';
 function before(n, func) {
   let result;
   if (typeof func != 'function') {
-    throw new TypeError(FUNC_ERROR_TEXT);
+    throw new TypeError('Expected a function');
   }
   n = toInteger(n);
   return function(...args) {

cond.js

@@ -1,9 +1,6 @@
 import apply from './_apply.js';
 import arrayMap from './_arrayMap.js';
 
-/** Error message constants. */
-const FUNC_ERROR_TEXT = 'Expected a function';
-
 /**
  * Creates a function that iterates over `pairs` and invokes the corresponding
  * function of the first predicate to return truthy. The predicate-function
@@ -37,7 +34,7 @@ function cond(pairs) {
 
   pairs = !length ? [] : arrayMap(pairs, pair => {
     if (typeof pair[1] != 'function') {
-      throw new TypeError(FUNC_ERROR_TEXT);
+      throw new TypeError('Expected a function');
     }
     return [pair[0], pair[1]];
   });

debounce.js

@@ -1,9 +1,6 @@
 import isObject from './isObject.js';
 import toNumber from './toNumber.js';
 
-/** Error message constants. */
-const FUNC_ERROR_TEXT = 'Expected a function';
-
 /* Built-in method references for those with the same name as other `lodash` methods. */
 const nativeMax = Math.max;
 const nativeMin = Math.min;
@@ -75,7 +72,7 @@ function debounce(func, wait, options) {
   let trailing = true;
 
   if (typeof func != 'function') {
-    throw new TypeError(FUNC_ERROR_TEXT);
+    throw new TypeError('Expected a function');
   }
   wait = toNumber(wait) || 0;
   if (isObject(options)) {

memoize.js

@@ -1,8 +1,5 @@
 import MapCache from './_MapCache.js';
 
-/** Error message constants. */
-const FUNC_ERROR_TEXT = 'Expected a function';
-
 /**
  * Creates a function that memoizes the result of `func`. If `resolver` is
  * provided, it determines the cache key for storing the result based on the
@@ -48,7 +45,7 @@ const FUNC_ERROR_TEXT = 'Expected a function';
  */
 function memoize(func, resolver) {
   if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {
-    throw new TypeError(FUNC_ERROR_TEXT);
+    throw new TypeError('Expected a function');
   }
   const memoized = function(...args) {
     const key = resolver ? resolver.apply(this, args) : args[0];

negate.js

@@ -1,6 +1,3 @@
-/** Error message constants. */
-const FUNC_ERROR_TEXT = 'Expected a function';
-
 /**
  * Creates a function that negates the result of the predicate `func`. The
  * `func` predicate is invoked with the `this` binding and arguments of the
@@ -22,7 +19,7 @@ const FUNC_ERROR_TEXT = 'Expected a function';
  */
 function negate(predicate) {
   if (typeof predicate != 'function') {
-    throw new TypeError(FUNC_ERROR_TEXT);
+    throw new TypeError('Expected a function');
   }
   return function(...args) {
     return !predicate.apply(this, args);

spread.js

@@ -3,9 +3,6 @@ import arrayPush from './_arrayPush.js';
 import castSlice from './_castSlice.js';
 import toInteger from './toInteger.js';
 
-/** Error message constants. */
-const FUNC_ERROR_TEXT = 'Expected a function';
-
 /* Built-in method references for those with the same name as other `lodash` methods. */
 const nativeMax = Math.max;
 
@@ -44,7 +41,7 @@ const nativeMax = Math.max;
  */
 function spread(func, start) {
   if (typeof func != 'function') {
-    throw new TypeError(FUNC_ERROR_TEXT);
+    throw new TypeError('Expected a function');
   }
   start = start == null ? 0 : nativeMax(toInteger(start), 0);
   return (...args) => {

throttle.js

@@ -1,9 +1,6 @@
 import debounce from './debounce.js';
 import isObject from './isObject.js';
 
-/** Error message constants. */
-const FUNC_ERROR_TEXT = 'Expected a function';
-
 /**
  * Creates a throttled function that only invokes `func` at most once per
  * every `wait` milliseconds. The throttled function comes with a `cancel`
@@ -52,7 +49,7 @@ function throttle(func, wait, options) {
   let trailing = true;
 
   if (typeof func != 'function') {
-    throw new TypeError(FUNC_ERROR_TEXT);
+    throw new TypeError('Expected a function');
   }
   if (isObject(options)) {
     leading = 'leading' in options ? !!options.leading : leading;