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JS Arrays Array[ ] Array( ) at() concat() constructor copyWithin() entries() every() fill() filter() find() findIndex() findLast() findLastIndex() flat() flatMap() forEach() from() includes() indexOf() isArray() join() keys() lastIndexOf() length map() of() pop() prototype push() reduce() reduceRight() rest (...) reverse() shift() slice() some() sort() splice() spread (...) toReversed() toSorted() toSpliced() toString() unshift() values() valueOf() with() JS Boolean Boolean() new Boolean() constructor prototype toString() valueOf() JS Classes constructor() extends static super JS Dates new Date() constructor getDate() getDay() getFullYear() getHours() getMilliseconds() getMinutes() getMonth() getSeconds() getTime() getTimezoneOffset() getUTCDate() getUTCDay() getUTCFullYear() getUTCHours() getUTCMilliseconds() getUTCMinutes() getUTCMonth() getUTCSeconds() now() parse() prototype setDate() setFullYear() setHours() setMilliseconds() setMinutes() setMonth() setSeconds() setTime() setUTCDate() setUTCFullYear() setUTCHours() setUTCMilliseconds() setUTCMinutes() setUTCMonth() setUTCSeconds() toDateString() toISOString() toJSON() toLocaleDateString() toLocaleTimeString() toLocaleString() toString() toTimeString() toUTCString() UTC() valueOf() JS Function Function apply() Function bind() Function call() Function length Function name Function toString() Function valueOf() JS Error new Error() cause isError() name message JS Global decodeURI() decodeURIComponent() encodeURI() encodeURIComponent() escape() eval() Infinity isFinite() isNaN() NaN Number() parseFloat() parseInt() String() undefined unescape() JS Iterators drop() every() filter() find() flatMap() forEach() map() reduce() some() take() JS JSON parse() stringify() JS Maps new Map clear() delete() entries() forEach() get() groupBy() has() keys() set() size values() JS Math abs() acos() acosh() asin() asinh() atan() atan2() atanh() cbrt() ceil() clz32() cos() cosh() E exp() expm1() f16round() floor() fround() LN2 LN10 log() log10() log1p() log2() LOG2E LOG10E max() min() PI pow() random() round() sign() sin() sinh() sqrt() SQRT1_2 SQRT2 tan() tanh() trunc() JS Numbers constructor EPSILON isFinite() isInteger() isNaN() isSafeInteger() MAX_SAFE_INTEGER MIN_SAFE_INTEGER MAX_VALUE MIN_VALUE NaN NEGATIVE_INFINITY POSITIVE_INFINITY parseFloat() parseInt() prototype toExponential() toFixed() toLocaleString() toPrecision() toString() valueOf() JS Objects assign() constructor create() defineProperties() defineProperty() delete entries() freeze() fromEntries() getOwnPropertyDescriptor() getOwnPropertyDescriptors() getOwnPropertyNames() groupBy() isExtensible() isFrozen() isSealed() keys() preventExtensions() prototype seal() toString() valueOf() values() JS Operators JS Assignment Assign Simple Assign Add Assign Subtract Assign Multiply Assign Divide Assign Remainder Assign Colon Assign AND Assign OR Assign Nullish JS Arithmetic Addition Subtraction Multiplication Division Exponentiation Remainder Increment Decrement Concatenation Unary Plus Unary Negation JS Comparison Equal Strict Equal Not Equal Strict Not Equal Greater Than Less Than Greater Equal Less Equal JS Logical Operators Logical AND Logical OR Logical NOT Logical Nullish JS Bitwise Operators Bitwise AND Bitwise OR Bitwise NOT Bitwise XOR Bitwise Left Bitwise Right Bitwise Signed JS Misc Operators : ?. ... () ? x : y => delete in instanceof typeof void JS Precedence JS Promises all() allSettled() any() catch() finally() race() reject() resolve() then() try() withResolvers() JS Proxy apply() construct() defineProperty() deleteProperty() get() getOwnPropertyDescriptor() getPrototypeOf() has() isExtensible() ownKeys() preventExtentions() set() setPrototypeOf() JS Reflect apply() construct() defineProperty() deleteProperty() get() getOwnPropertyDescriptor() getPrototypeOf() has() isExtensible() ownKeys() preventExtentions() set() setPrototypeOf() JS RegExp Patterns /d /g /i /m /s /u /v /y [a] [^a] [abc] [^abc] [A-Z] [^A-Z] [0-9] [^0-9] a|b . \w \W \d \D \s \S [\b] \0 \n \f \r \t \v \p \P \ddd \xhh \uhhhh ^ $ \b \B x(?=y) x(?!y) (?<=y)x (?<!y)x (x) (?<name>x) (?flags:x) + * ? {n} {n,m} {n,} JS RegExp Reference compile() constructor dotAll escape() exec() flags global hasIndices ignoreCase lastIndex multiline source sticky test() toString() unicode unicodeSets JS Sets new Set add() clear() delete() difference() entries() forEach() has() intersection() isDisjointFrom() isSubsetOf() isSupersetOf() keys() size symmetricDifference() union() values() JS Statements break class const continue debugger do...while for for...in for...of function if...else let return switch throw try...catch var while JS Strings at() charAt() charCodeAt() codePointAt() concat() constructor endsWith() fromCharCode() includes() indexOf() isWellFormed() lastIndexOf() length localeCompare() match() matchAll() padEnd() padStart() prototype repeat() replace() replaceAll() search() slice() split() startsWith() substr() substring() toLocaleLowerCase() toLocaleUpperCase() toLowerCase() toString() toUpperCase() toWellFormed() trim() trimEnd() trimStart() valueOf() JS Typed Arrays Int8Array Uint8Array Uint8ClampedArray Int16Array Uint16Array Int32Array Uint32Array BigInt64Array BigUint64Array Float16Array Float32Array Float64Array JS Typed Reference at() byteLength byteOffset bytesPerElement copyWithin() entries() every() fill() filter() find() findIndex() findLast() findLastIndex() forEach() from() includes() indexOf() join() keys() lastIndexOf() length map() name of() reduce() reduceRight() reverse() set() slice() some() sort() subarray() toLocaleString() toReversed() toSorted() toString() values() with()

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Other References

CSSStyleDeclaration cssText getPropertyPriority() getPropertyValue() item() length parentRule removeProperty() setProperty() JS Conversion JavaScript String trim() ❮ Previous JavaScript String Reference Next ❯

Example 1

Remove spaces with trim():

let text = " Hello World! "; let result = text.trim(); Try it Yourself »

Remove spaces with replace() using a regular expression:

let text = " Hello World! "; let result = text.replace(/^\s+|\s+$/gm,''); Try it Yourself »

Description

The trim() method removes whitespace from both sides of a string.

The trim() method does not change the original string.

See Also:

The trimEnd() Method

The trimStart() Method

The padEnd() Method

The padStart() Method

Syntax

string.trim()

Parameters

NONE

Return Value

Type	Description
A string	A string with removed whitespace from both ends.

Related Pages

JavaScript Strings

JavaScript String Methods

JavaScript String Search

Browser Support

trim() is an ECMAScript5 (ES5 2009) feature.

JavaScript 2009 is supported in all browsers since July 2013:

Chrome23	IE/Edge11	Firefox21	Safari6	Opera15
Sep 2012	Sep 2012	Apr 2013	Jul 2012	Jul 2013

❮ Previous JavaScript String Reference Next ❯ ★ +1 Sign in to track progress

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