diff --git a/.eslintrc b/.eslintrc
new file mode 100644
index 00000000000..fa832ed3d28
--- /dev/null
+++ b/.eslintrc
@@ -0,0 +1,18 @@
+{
+	"root": true,
+	"env": {
+		"browser": true,
+		"node": true
+	},
+	"globals": {
+		"wp": true,
+		"wpApiSettings": true,
+		"wcSettings": true
+	},
+	"rules": {
+		"camelcase": 0,
+		"indent": 0,
+		"max-len": [ 2, { "code": 140 } ],
+		"no-console": 1
+	}
+}
diff --git a/package-lock.json b/package-lock.json
index 4fc6f7913f9..ee8bd9042f7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -174,6 +174,18 @@
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+      "dev": true
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       "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
@@ -1711,6 +1723,21 @@
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@@ -1814,6 +1841,12 @@
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       "dev": true
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+      "resolved": "https://registry.npmjs.org/chardet/-/chardet-0.7.0.tgz",
+      "integrity": "sha512-mT8iDcrh03qDGRRmoA2hmBJnxpllMR+0/0qlzjqZES6NdiWDcZkCNAk4rPFZ9Q85r27unkiNNg8ZOiwZXBHwcA==",
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@@ -2284,6 +2317,12 @@
         "type-detect": "^4.0.0"
       }
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+    "deep-is": {
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+      "resolved": "https://registry.npmjs.org/deep-is/-/deep-is-0.1.3.tgz",
+      "integrity": "sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=",
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       "resolved": "https://registry.npmjs.org/define-property/-/define-property-2.0.2.tgz",
@@ -2405,6 +2444,15 @@
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+      "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-2.1.0.tgz",
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+      "dev": true,
+      "requires": {
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       "resolved": "https://registry.npmjs.org/dom-serializer/-/dom-serializer-0.1.0.tgz",
@@ -2558,6 +2606,325 @@
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@@ -2568,18 +2935,44 @@
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       "dev": true
     },
+    "espree": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/espree/-/espree-4.1.0.tgz",
+      "integrity": "sha512-I5BycZW6FCVIub93TeVY1s7vjhP9CY6cXCznIRfiig7nRviKZYdRnj/sHEWC6A7WE9RDWOFq9+7OsWSYz8qv2w==",
+      "dev": true,
+      "requires": {
+        "acorn": "^6.0.2",
+        "acorn-jsx": "^5.0.0",
+        "eslint-visitor-keys": "^1.0.0"
+      }
+    },
     "esprima": {
       "version": "2.7.3",
       "resolved": "https://registry.npmjs.org/esprima/-/esprima-2.7.3.tgz",
       "integrity": "sha1-luO3DVd59q1JzQMmc9HDEnZ7pYE=",
       "dev": true
     },
+    "esquery": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/esquery/-/esquery-1.0.1.tgz",
+      "integrity": "sha512-SmiyZ5zIWH9VM+SRUReLS5Q8a7GxtRdxEBVZpm98rJM7Sb+A9DVCndXfkeFUd3byderg+EbDkfnevfCwynWaNA==",
+      "dev": true,
+      "requires": {
+        "estraverse": "^4.0.0"
+      }
+    },
     "esrecurse": {
       "version": "4.2.1",
       "resolved": "https://registry.npmjs.org/esrecurse/-/esrecurse-4.2.1.tgz",
@@ -2673,6 +3066,28 @@
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       }
     },
+    "external-editor": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/external-editor/-/external-editor-3.0.3.tgz",
+      "integrity": "sha512-bn71H9+qWoOQKyZDo25mOMVpSmXROAsTJVVVYzrrtol3d4y+AsKjf4Iwl2Q+IuT0kFSQ1qo166UuIwqYq7mGnA==",
+      "dev": true,
+      "requires": {
+        "chardet": "^0.7.0",
+        "iconv-lite": "^0.4.24",
+        "tmp": "^0.0.33"
+      },
+      "dependencies": {
+        "iconv-lite": {
+          "version": "0.4.24",
+          "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.24.tgz",
+          "integrity": "sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==",
+          "dev": true,
+          "requires": {
+            "safer-buffer": ">= 2.1.2 < 3"
+          }
+        }
+      }
+    },
     "extglob": {
       "version": "0.3.2",
       "resolved": "https://registry.npmjs.org/extglob/-/extglob-0.3.2.tgz",
@@ -3052,6 +3467,12 @@
       "integrity": "sha1-1RQsDK7msRifh9OnYREGT4bIu/I=",
       "dev": true
     },
+    "fast-levenshtein": {
+      "version": "2.0.6",
+      "resolved": "https://registry.npmjs.org/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz",
+      "integrity": "sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=",
+      "dev": true
+    },
     "faye-websocket": {
       "version": "0.10.0",
       "resolved": "https://registry.npmjs.org/faye-websocket/-/faye-websocket-0.10.0.tgz",
@@ -3876,6 +4297,12 @@
         "rimraf": "2"
       }
     },
+    "functional-red-black-tree": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz",
+      "integrity": "sha1-GwqzvVU7Kg1jmdKcDj6gslIHgyc=",
+      "dev": true
+    },
     "gauge": {
       "version": "2.7.4",
       "resolved": "https://registry.npmjs.org/gauge/-/gauge-2.7.4.tgz",
@@ -5359,6 +5786,12 @@
       "integrity": "sha1-IHurkWOEmcB7Kt8kCkGochADRXU=",
       "dev": true
     },
+    "is-promise": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/is-promise/-/is-promise-2.1.0.tgz",
+      "integrity": "sha1-eaKp7OfwlugPNtKy87wWwf9L8/o=",
+      "dev": true
+    },
     "is-property": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/is-property/-/is-property-1.0.2.tgz",
@@ -5371,6 +5804,12 @@
       "integrity": "sha1-/S2INUXEa6xaYz57mgnof6LLUGk=",
       "dev": true
     },
+    "is-resolvable": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/is-resolvable/-/is-resolvable-1.1.0.tgz",
+      "integrity": "sha512-qgDYXFSR5WvEfuS5dMj6oTMEbrrSaM0CrFk2Yiq/gXnBvD9pMa2jGXxyhGLfvhZpuMZe18CJpFxAt3CRs42NMg==",
+      "dev": true
+    },
     "is-supported-regexp-flag": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/is-supported-regexp-flag/-/is-supported-regexp-flag-1.0.1.tgz",
@@ -5714,6 +6153,12 @@
       "integrity": "sha1-NJptRMU6Ud6JtAgFxdXlm0F9M0A=",
       "dev": true
     },
+    "json-stable-stringify-without-jsonify": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz",
+      "integrity": "sha1-nbe1lJatPzz+8wp1FC0tkwrXJlE=",
+      "dev": true
+    },
     "json-stringify-safe": {
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz",
@@ -5837,6 +6282,16 @@
         "invert-kv": "^1.0.0"
       }
     },
+    "levn": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/levn/-/levn-0.3.0.tgz",
+      "integrity": "sha1-OwmSTt+fCDwEkP3UwLxEIeBHZO4=",
+      "dev": true,
+      "requires": {
+        "prelude-ls": "~1.1.2",
+        "type-check": "~0.3.2"
+      }
+    },
     "lie": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/lie/-/lie-3.1.1.tgz",
@@ -6137,6 +6592,12 @@
         "mime-db": "~1.30.0"
       }
     },
+    "mimic-fn": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/mimic-fn/-/mimic-fn-1.2.0.tgz",
+      "integrity": "sha512-jf84uxzwiuiIVKiOLpfYk7N46TSy8ubTonmneY9vrpHNAnp0QBt2BxWV9dO3/j+BoVAb+a5G6YDPW3M5HOdMWQ==",
+      "dev": true
+    },
     "minimatch": {
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
@@ -6306,6 +6767,18 @@
         }
       }
     },
+    "natural-compare": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/natural-compare/-/natural-compare-1.4.0.tgz",
+      "integrity": "sha1-Sr6/7tdUHywnrPspvbvRXI1bpPc=",
+      "dev": true
+    },
+    "nice-try": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/nice-try/-/nice-try-1.0.5.tgz",
+      "integrity": "sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ==",
+      "dev": true
+    },
     "node-gyp": {
       "version": "3.7.0",
       "resolved": "https://registry.npmjs.org/node-gyp/-/node-gyp-3.7.0.tgz",
@@ -6607,6 +7080,20 @@
         }
       }
     },
+    "optionator": {
+      "version": "0.8.2",
+      "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.8.2.tgz",
+      "integrity": "sha1-NkxeQJ0/TWMB1sC0wFu6UBgK62Q=",
+      "dev": true,
+      "requires": {
+        "deep-is": "~0.1.3",
+        "fast-levenshtein": "~2.0.4",
+        "levn": "~0.3.0",
+        "prelude-ls": "~1.1.2",
+        "type-check": "~0.3.2",
+        "wordwrap": "~1.0.0"
+      }
+    },
     "os-homedir": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/os-homedir/-/os-homedir-1.0.2.tgz",
@@ -6823,6 +7310,12 @@
         "pinkie": "^2.0.0"
       }
     },
+    "pluralize": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/pluralize/-/pluralize-7.0.0.tgz",
+      "integrity": "sha512-ARhBOdzS3e41FbkW/XWrTEtukqqLoK5+Z/4UeDaLuSW+39JPeFgs4gCGqsrJHVZX0fUrx//4OF0K1CUGwlIFow==",
+      "dev": true
+    },
     "posix-character-classes": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/posix-character-classes/-/posix-character-classes-0.1.1.tgz",
@@ -7123,6 +7616,12 @@
       "integrity": "sha1-h/OPnxj3dKSrTIojL1xc6IcqnRU=",
       "dev": true
     },
+    "prelude-ls": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/prelude-ls/-/prelude-ls-1.1.2.tgz",
+      "integrity": "sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=",
+      "dev": true
+    },
     "preserve": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/preserve/-/preserve-0.2.0.tgz",
@@ -7150,6 +7649,12 @@
       "integrity": "sha1-FQ4gt1ZZCtP5EJPyWk8q2L/zC6M=",
       "dev": true
     },
+    "progress": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/progress/-/progress-2.0.1.tgz",
+      "integrity": "sha512-OE+a6vzqazc+K6LxJrX5UPyKFvGnL5CYmq2jFGNIBWHpc4QyE49/YOumcrpQFJpfejmvRtbJzgO1zPmMCqlbBg==",
+      "dev": true
+    },
     "pseudomap": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/pseudomap/-/pseudomap-1.0.2.tgz",
@@ -7309,6 +7814,12 @@
         "safe-regex": "^1.1.0"
       }
     },
+    "regexpp": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/regexpp/-/regexpp-2.0.1.tgz",
+      "integrity": "sha512-lv0M6+TkDVniA3aD1Eg0DVpfU/booSu7Eev3TDO/mZKHBfVjgCGTV4t4buppESEYDtkArYFOxTJWv6S5C+iaNw==",
+      "dev": true
+    },
     "regexpu-core": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/regexpu-core/-/regexpu-core-2.0.0.tgz",
@@ -7563,6 +8074,30 @@
       "integrity": "sha1-l/cXtp1IeE9fUmpsWqj/3aBVpNE=",
       "dev": true
     },
+    "require-uncached": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/require-uncached/-/require-uncached-1.0.3.tgz",
+      "integrity": "sha1-Tg1W1slmL9MeQwEcS5WqSZVUIdM=",
+      "dev": true,
+      "requires": {
+        "caller-path": "^0.1.0",
+        "resolve-from": "^1.0.0"
+      },
+      "dependencies": {
+        "resolve-from": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-1.0.1.tgz",
+          "integrity": "sha1-Jsv+k10a7uq7Kbw/5a6wHpPUQiY=",
+          "dev": true
+        }
+      }
+    },
+    "requireindex": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/requireindex/-/requireindex-1.2.0.tgz",
+      "integrity": "sha512-L9jEkOi3ASd9PYit2cwRfyppc9NoABujTP8/5gFcbERmo5jUoAKovIC3fsF17pkTnGsrByysqX+Kxd2OTNI1ww==",
+      "dev": true
+    },
     "resolve": {
       "version": "1.1.7",
       "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.1.7.tgz",
@@ -7652,6 +8187,15 @@
       "integrity": "sha1-Gc5QLKVyZl87ZHsQk5+X/RYV8QI=",
       "dev": true
     },
+    "rxjs": {
+      "version": "6.3.3",
+      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.3.3.tgz",
+      "integrity": "sha512-JTWmoY9tWCs7zvIk/CvRjhjGaOd+OVBM987mxFo+OW66cGpdKjZcpmc74ES1sB//7Kl/PAe8+wEakuhG4pcgOw==",
+      "dev": true,
+      "requires": {
+        "tslib": "^1.9.0"
+      }
+    },
     "safe-buffer": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.1.tgz",
@@ -8804,6 +9348,12 @@
         }
       }
     },
+    "tslib": {
+      "version": "1.9.3",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
+      "integrity": "sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ==",
+      "dev": true
+    },
     "tunnel-agent": {
       "version": "0.6.0",
       "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
@@ -8820,6 +9370,15 @@
       "dev": true,
       "optional": true
     },
+    "type-check": {
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",
+      "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
+      "dev": true,
+      "requires": {
+        "prelude-ls": "~1.1.2"
+      }
+    },
     "type-detect": {
       "version": "4.0.8",
       "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
diff --git a/package.json b/package.json
index a8bae722568..3ba0d77be97 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,8 @@
   "scripts": {
     "build": "grunt",
     "build-watch": "grunt watch",
+    "lint:js": "eslint assets/js --ext=js",
+    "lint:js-fix": "eslint assets/js --ext=js --fix",
     "test": "cross-env NODE_CONFIG_DIR='./tests/e2e-tests/config' BABEL_ENV=commonjs mocha \"tests/e2e-tests\" --require babel-register --recursive",
     "test:grep": "cross-env NODE_CONFIG_DIR='./tests/e2e-tests/config' BABEL_ENV=commonjs mocha \"tests/e2e-tests\" --require babel-register --grep ",
     "test:single": "cross-env NODE_CONFIG_DIR='./tests/e2e-tests/config' BABEL_ENV=commonjs mocha --require babel-register"
@@ -29,6 +31,9 @@
     "chromedriver": "^2.40.0",
     "config": "^1.24.0",
     "cross-env": "^5.1.6",
+    "eslint": "5.8.0",
+    "eslint-config-wpcalypso": "4.0.1",
+    "eslint-plugin-wpcalypso": "4.0.2",
     "grunt": "^1.0.3",
     "grunt-checktextdomain": "~1.0.1",
     "grunt-contrib-clean": "~1.1.0",